The purpose of treating the radish seeds for the lab "Radical Radishes" with radioactive cobalt-607 is to hybridize normal radish DNA with a radioactive DNA probe. Thus, the correct option is B.
What are Probes?Probes may be characterized as a single-stranded sequence of DNA or RNA manipulated to explore its complementary sequence in a sample genome.
The radioactive elements in the research are used for hybridizing the radioactive probes that are labeled in the genome sample which is under investigation.
Therefore, the correct option is B.
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from about 450 to 300 million years ago, ______ dominated earth's vegetation, and then about 300 million years ago, ______ began to become more prominent.
From about 450 to 300 million years ago, bryophytes dominated the earth's vegetation, and then about 300 million years ago, gymnosperms began to become more prominent.
Evolution of plantsAbout 450 to 300 million years ago, most of the plants as we currently have them are yet to evolve according to evolutionists.
Instead, seedless vascular plants such as bryophytes were around. Many years after, these seedless plants evolved into vascular plants with seeds that are not enclosed in fruits.
Vascular plants with seeds but without fruits are known as gymnosperms. Plants whose seeds are enclosed in fruits, angiosperms, evolved thereafter.
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Sphingosine is not a component of:
According to the research, sphingosine is an aminoalcohol that forms ceramides and is not a component of cardiolipin.
What is sphingosine?It is an aminoalcohol that is found in most of the sphingolipids of animal tissues.
It intervenes in cellular metabolic regulation processes related to lipid signaling pathways.
Therefore, we can conclude that according to the research, sphingosine is an aminoalcohol that forms ceramides and is not a component of cardiolipin.
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Why did Gregor Mendel choose to use purebred plants in his experiments?
O They reproduce sexually.
O They exhibit only one form of a trait
O They have a variety of traits.
O They reproduce asexually,
Answer:
B: The exhibit only one form of a trait
Explanation:
Got it right on the Quiz.
Which of these statements is NOT true of the phylogenetic tree?
The statement that is not true of the phylogenetic tree is that it ranks organisms by importance in evolutionary history. option A
Features of the phylogenetic treeA phylogenetic tree is a diagram representing evolutionary relationships among organisms. It is also known as phylogenyPhylogenetic trees are hypothesesIt reflects how species or other groups evolved from a common ancestors.Hence, the statement that is not true of the phylogenetic tree is that it ranks organisms by importance in evolutionary history. option A
The complete question is:
Which of these statements is NOT true of the phylogenetic tree?
A. It ranks organisms by importance in evolutionary history.
B. It depicts an organism's lineage as it changes over time.
C. It shows successive events of speciation in which one species gives rise to two.
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How many layers does a muscle fascicle have connective tissues
A muscle fascicle have three layers of connective tissues.
What are connective tissues?Connective tissues are tissues which connects layers of organs or tissues together.
A muscle us a type of tissue.
A muscle fascicle have three layers of connective tissues called:
epimysium, perimysium, and endomysiumTherefore, a muscle fascicle have three layers of connective tissues.
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Arrange the symbols to form a dna molecule. an upward arrow. a downward arrow. 5' an upward arrow. a downward arrow. 3'
The clear representation of the DNA molecule is represented below in the picture.
What is a DNA molecule?A DNA molecule may be characterized as a molecule that possesses the biological instructions that assemble each species remarkable. It is a molecule found inside cells that comprises the genetic information accountable for the expansion and operation of an organism.
A DNA molecule is comprised of nucleotide base pairs like Adenine (A), Thymine (T), guanine (G), and cytosine (C).
According to Chargaff's rule, adenine is bounded to thymine with the help of two hydrogen bonds while guanine is bounded to cytosine with the help of three hydrogen bonds.
Therefore, it is well described above.
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Answer:
C T
A. G
3'. 5'
Explanation:
which factor will mostly likely decrease biodiversity? complex population interactions introduced species increased energy availability narrower niches
The factor that mostly likely decrease biodiversity in a ecosystem is narrower niches because narrower niches does not give way for various organisms to inhabit .
What is biodiversity?Biodiversity refer to various or different kind of plants and animals present in the environment and their role in their habitat
Therefore, The factor that mostly likely decrease biodiversity is narrower niches
because narrower niches does not give way for various organisms to inhabit.
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What molecule is the final electron acceptor in the Electron Transport Chain?
The final electron-accepting molecule in the electron transport chain is oxygen.
Role of oxygen in the electron transport chainOxygen mainly acts as an electron acceptor in the electron transport chain. More specifically, it acts as the final electron acceptor to ensure that oxidative phosphorylation takes place.
Without this final electron acceptor, the electron transport chain will not be able to complete the cycle, and energy molecules in the form of ATP will not be formed.
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Which of the
following is the
correct pairing of
the cell type to its
purpose?
A. parenchyma cell-thin cell wall, perform
metabolic functions, and make up most of
the plant
B. sclerenchyma cell-strong cell walls that
support the plant and allow it to bend
C. collenchyma cells-thick, hard cell walls to
make it tough like a seed coat
The statement that correctly pairs the cell type and it's purpose is as follows: parenchyma cell - thin cell wall, perform metabolic functions, and make up most of the plant (option A).
What are the types of plant cells?Plant cells are of varying types and they perform different functions in the system.
The simple cell types that can be found in plants are as follows:
Parenchyma; the cellular tissue, typically soft and succulent, found chiefly in the softer parts of leaves, pulp of fruits. Collenchyma; living, elongated, mechanical and flexible ground tissue with angular pectin depositions; present just under leaves, tendrils and stems Sclerenchyma; mechanical ground tissue, impermeable to water, which consists of cells having narrow lumen and thick, mineralized walls of ligninFrom the above description, the statement that correctly pairs the cell type and it's purpose is as follows: parenchyma cell - thin cell wall, perform metabolic functions, and make up most of the plant.
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An example of a wobble base is?
Answer:
The four main wobble base pairs which are:
guanine–uracil (G–U),hypoxanthine–uracil (I–U), hypoxanthine–adenine (I–A), hypoxanthine–cytosine (I–C).Choose any one of them.
Summary of transcription
Answer:
Explanation:
During transcription, DNA is converted into RNA in the nucleus of the cell.
Which phrase used by the president was specifically chosen to convince the public to support the war?
“facts of yesterday”
“unprovoked and dastardly attack”
“have already formed their opinions”
“a state of war has existed”
The phrase used by the president was specifically chosen to convince the public to support the war is “unprovoked and dastardly attack”. Thus, option "B" is correct.
How, support your answer?President Roosevelt was in office when Pearl Harbor happened, and it was the perfect occasion that the government of the United States needed to enter a war that was clearly being won by the Germans and Japanese, they had already taken decisions prior to this to help the allies, but they couldn´t directly send troops when the bombings on Pearl Harbor took place, and since the USA had never provoked, attacked or done anything to upset Japan, they were now able to declare war on Japan an its allies.
Thus, option "B" is correct.
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Answer:
B
Explanation:
Did the assignment
The area around the Sahara desert is slowly changing into a dry region like desert. Which trait is most likely to be selected in the population of plants growing in this region?
Answer:
drought resistant trait
A plant is homozygous for the production of yellow seeds (YY) and homozygous for wrinkled seeds (r). What possible gametes will this plant produce?
OA. Yr only
OB. YY and rr only
OC. Y, y, and r only
OD. YR, Yr, yR, and yr
A plant is homozygous for the production of yellow seeds (YY) and homozygous for wrinkled seeds, possible gametes will this plant produce (r) Y, y, and r only. Thus, option "C" is correct.
How, explain your answer?The plant is heterozygous (Yy) for the color of seed and homozygous (rr) for the shape of the seed.
For the color of the seed, there are two alleles that will take part in gametes formation are (Y) n (y) while for the shape of seed is have only two recessive alleles (r).
So, by the assortment of (Y) n (r) the first gamete will be (Yr) and an assortment of (y) n (r) second gamete will be (yr).
Thus, the correct answer is option C. Yr and yr only.
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Which event is NOT part of the process of DNA replication?
1.Ribosomes are synthesized.
2.Hydrogen bonds are broken.
3.Nitrogenous base pairs are formed.
4.A double-stranded molecule unwinds.
Explanation:
1 cuz we don't need that ,we need all of them exept number 1
Answer:
1. (Ribosomes are synthesized)
Explanation:
Ribosomes are only involved in the translation of mRNA to proteins. During DNA replication DNA helicase unwind the DNA double-strand by breaking hydrogen bonds between the two strands. DNA polymerase then replicates each strands using nucleotides complimentary of the replicating strands.
The answers above is not my original answer, this question has already been answered previously by someone else, so all credit is given to Diatonic254.
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Because one of the two strands of a replicated DNA molecule is newly synthesized and the other is the original template, DNA replication is said to be a ______ process.
Because one of the two strands of a replicated DNA molecule is newly synthesized and the other is the original template, DNA replication is said to be a semi-conservative process.
What is DNA replication?DNA replication may be defined as the biological process that involves duplicating a DNA molecule comparable to the construction of two DNA molecules.
DNA replication is proceeded by the semiconservative model, which means that the parental double helix is half conserved, and each parental single strand remains intact.
Therefore, it is well described above.
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During development, how many bones combine to form each of the coxal bones?.
Coxal bone is constructed up of a fusion of three bones: ilium, ischium, and pubis. Ilium- Ilium is the biggest part of the coxal bone.
Sari and Jon disagree over who needs more calories (proportionately) per day to survive a three-month-old baby or a
grown adult San argues that a grown adult is bigger and needs more calories per pound of body weight Jon believes
the baby would require more calories per pound of body weight
he is most likely conect and why?
San, because it takes more energy to move the larger muscles that adults have, so they need more calories
Jon, because babies grow at a much berate than adults and require more cabries to support this growth
Jah, because babies are more active than grown adults and need more energy from calories
San because adults have more to do during the day and need more calories to sustain their activities
San is correct , because it takes more energy to move the larger muscles that adults and is denoted as option A.
What is Calorie?This is referred to as a unit of energy in food substances such as carbohydrates, fats etc.
Adults have larger muscles composed of bigger tissues which requires more energy for their functioning in our daily activities which is why San was correct.
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i need help with part b
Can someone help me please
wise is the answer because the word bold also means wise
the answer is lazy because sage also means lazy
Round seeds are dominant over wrinkled seeds in
the pea plants that Mendel studied. Provide the
genotypes and phenotypes of offspring produced
when a heterozygous round plant crosses with
another heterozygous round plant.
Genotype - RR - 25%, Rr - 50%, rr - 25% (1:2:1)
Phenotype - Round seeds - 75%, Wrinkled seeds - 25% (3:1)
How explain your answer?Let the letter "r" stand for the alleles, where R is round seeds and r is wrinkled seeds. A genotype is an individual's genes represented through alleles. Phenotypes are how the genes express themselves. In other words, genotypes will be written using letters, the alleles, and phenotypes will be the possible outcomes of the alleles.
Both of the parent seeds have the genotypes Rr and the phenotype of round seeds.
If you create punnet square (which had four boxes in total) 1 will have RR, 2 will have Rr, and 1 will have rr. These are the ratios for the genotypes. Each box represents 25%, so the percentages will be 25, 50, and 25. Finally, 3 of these boxes (RR and Rr) will result in round seeds because those are dominant. Only the genotype rr will result in wrinkled phenotype. Therefore, the ratio is 3:1 or 75% to 25%.
Thus, this could be the answer.
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Can you think of a physiologic process that is not under the control of a homeostatic reflex system?.
Hair and nail growth are not homeostatically controlled. There is no miracle in using exuberance to handle these procedures. The disadvantage is that they can produce very long and interrupt normal activities.
Hair and nail growth are not homeostatic ally controlled. The disadvantage is that they can produce very long and interrupt normal activities.
What is homeostasis ?It is a physiological process where body to maintain the internal environment in response to changes in outer external environment.
Internal environment means the interstitial fluids while external environment refers to the environment in which organisms live.
Any fluctuation in homeostasis leads to death or a disease of an organism, called as homeostatic imbalance.
The diseases include diabetes, dehydration, hypoglycemia, hyperglycemia, gout etc.
The controlling factors of homeostasis are stimulus can be any physical, chemical or environmental factors leads to deviation of normal body’s environment
Receptor receives the stimulus and pass to the control center like neuron.
Regulator can control coordinator center receives and processes information from the receptor like Hypothalamus.
Effector can control commands from stimulus like Glands, muscles
Response refers to any reaction response to the stimulus.
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Compare the structure and location of the human large intestine with those of the fetal pig.
The comparison between the structure and location of the human large intestine with those of the fetal pig are as described below.
What are the differences in the hearts?Fetal Pigs usually have large intestines that is located at their left side and is primarily a predominant spiral colon.
However, the human heart is different because it has an ascending colon on the right side that is connected to the descending colon on the left side of our body by the transverse colon.
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In this investigation, you will observe the release of O2 and CO2 into the environment. Gas production by two types of organisms will serve as evidence of photosynthesis and cellular respiration in action. In part 1, you will vary the amount of sugar present and observe the effect on cellular respiration.
Anaerobic (without oxygen) and aerobic (with oxygen) cellular respiration are both possible (without oxygen).
During aerobic cellular respiration, glucose and oxygen combine to create ATP, which the cell can utilise. As byproducts, carbon dioxide and water are produced.
What are the three stages of cellular respiration?The Krebs cycle, oxidative phosphorylation, and glycolysis—an anaerobic process—are the three phases of aerobic cellular respiration.
All forms of cellular respiration begin with glycolysis, which is anaerobic and oxygen-free. The pathway will go on to the Krebs cycle and oxidative phosphorylation if oxygen is present. However, some species may engage in fermentation to continuously manufacture ATP in the absence of oxygen.
Total amount of ATP molecules generated during aerobic respiration from a single glucose molecule.
During glycolysis:
As 2ATP
From 2NADH 5ATP (oxidation phosphorylation)
In pyruvate oxidation;
From 2NADH 5ATP (oxidative phosphorylation)
Citric acid cycle;
ATP ATP (substrate level phosphorylation)
From 6NADH 15ATP (oxidative phosphyrlation)
From 2 FADH2 3ATP
Total Number ATP = 32 ATP
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Which does NOT describe bacteria? one niet
A They are prokaryotic cells.
B They have cell walls and cell membranes.
C Their genetic material is found in the cytoplasm.
D They have membrane-bound organelles.
Answer:
D they have membrane bound organelles
Explanation:
Which of these factors causes populations to compete?
A. Continuous migration
B. Low population densities
C. Limited resources
D. High death rates
Which one of the following
molecules would be most
likely to travel by facilitated
diffusion?
A. Uncharged oxygen molecule (02)
B. a large organic molecule
C. Uncharged neon atoms (Ne)
Uncharged oxygen molecules would be most likely to travel by facilitated diffusion.
What is facilitated diffusion?Facilitated diffusion is a transport mechanism by which molecules move to both sides of biological membranes in favor of a concentration gradient.
Facilitated diffusion generally involves small molecules such as O2 and does not involve energy expenditure.
In conclusion, uncharged oxygen molecules would be most likely to travel by facilitated diffusion.
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In general, how might recombinant dna technology be used to prevent a genetic disorder caused by a mutation in a single gene?.
Recombinant DNA technology is used to prevent a genetic disorder caused by a mutation in a single gene by reinserting nucleotide sequences in a normal linear order.
What is a gene?A gene is a fragment of single-stranded DNA that is used during transcription and translation to produce a protein.
A mutated gene has a different nucleotide sequence when compared to the normal gene, which can be corrected by using recombined normal sequences.
In conclusion, recombinant DNA technology is used to prevent a genetic disorder caused by a mutation in a single gene by reinserting nucleotide sequences in a normal linear order.
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The primary mirror in a reflecting telescope is a
plane mirror.
concave mirror.
convex mirror.
Answer:
B or concave mirror.
Explanation:
Which muscle contributes to external rotation of the glenohumeral joint?
According to the research, the infraspinatus contributes to external rotation of the glenohumeral joint.
What is the infraspinatus?It is a flat muscle, which is part of the rotator cuff of the shoulder, it fulfills the function of stabilizing the joint surfaces involved in the glenohumeral joint, performing external rotation.
In other words, this muscle performs similar movements and shares the same place where they are inserted, with the supraspinatus, the teres minor and the subscapularis.
Therefore, we can conclude that according to the research, the infraspinatus contributes to external rotation of the glenohumeral joint.
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