Answer:
E. hope it helpss......
For traits controlled by a single genetic locus, dominant phenotypes are expected to occur at a frequency of approximately 75%, in a randomly mating population.
true or false and why
Answer:
True.
Explanation:
The dominant phenotypes are expected to occur at a frequency of approximately 75%, in a population because of its dominant nature which allows them to appear in the physical structure of the organisms. In most of the offspring, the dominant allele shows their characteristics in the population whereas the recessive allele are hidden in that organisms and we can't see them in the physical appearance of the organisms.
Scientists who study taxonomy are called (1 point)
O paleontologists.
O zoologists
O systematists
O botanists.
Answer:
systematists
Explanation:
I just took the Test
Scientists who study taxonomy are called systematists.
Systematics refers to the field whose objective is to study the diversification patterns of living organisms from different taxonomic groups (e.g., plants, animals, bacteria, etc).Systematists are scientists that classify life forms according to evolutionary relationships, which are visualized as evolutionary trees.Systematists specialize in classifying and sorting biological information about plants and animals and group them according to their patterns of variation.In conclusion, scientists who study taxonomy are called systematists.
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Compare and contrast prokaryotes, eukaryotes, and viruses. Be as detailed as possible. Include 2 examples of each type of cell and 2 examples of viruses.
1 or 2 pg
please
Answer:
Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions.
Answer:
Microorganisms and all other living organisms are classified as prokaryotes or eukaryotes. Prokaryotes and eukaryotes are distinguished on the basis of their cellular characteristics. For example, prokaryotic cells lack a nucleus and other membrane‐bound structures known as organelles, while eukaryotic cells have both a nucleus and organelles. Prokaryotic and eukaryotic cells are similar in several ways. Both types of cells are enclosed by cell membranes (plasma membranes), and both use DNA for their genetic information.
Prokaryotes include several kinds of microorganisms, such as bacteria and cyanobacteria. Eukaryotes include such microorganisms as fungi, protozoa, and simple algae. Viruses are considered neither prokaryotes nor eukaryotes because they lack the characteristics of living things, except the ability to replicate (which they accomplish only in living cells). Viruses - Corona virus, HIV.
What is the function of a Golgi apparatus in a cell?
Explanation:
Functions :Listed below are the functions of Golgi complex
The vital function of the Golgi apparatus is packaging and secretion of proteins.It receives proteins from Endoplasmic Reticulum.It packages it into membrane-bound vesicles, which are then transported to various destinations, such as lysosomes, plasma membrane or secretion.They also take part in the transport of lipids and the formation of lysosomes.Post-translational modification and enzymatic processing occur near the membrane surface in Golgi bodies, e.g. phosphorylation, glycosylation, etc.Golgi apparatus is the site for the synthesis of various glycolipids, sphingomyelin, etc.Complex polysaccharides of the cell wall are synthesised in the Golgi apparatus in plant cells.Which is true of reabsorption in the distal convoluted tubule?
Answer: its false
Explan : hope im right
Envision the end-products of mitosis and meiosis (not considering fertilization).
Which of these end-products can exhibit "recessivity" of genes?
Help please:)
Answer:
Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells.
Explanation:
The end products of mitosis are two identical daughter cells, while on the other hand, the end products of meiosis are four sex cells. Meiosis is the cell division that is responsible for the presence of "recessivity" of genes in organisms because meiosis type of cell division occurs in the gametes of the organisms such as sperm and eggs. This cell division allows the gametes or allele appears in the organisms that is dominant and hide the features of recessive allele.
PLEASE ASNWER AS FAST AS POSSIBLE.
Suggest and explain how the percentage of oxygen is different compared to individual with diet low iron intake for several years.
Answer:
Iron deficiency leads to low hemoglobin levels, and therefore oxygen levels are lower than normal
Explanation:
Hemoglobin is a protein found in red blood cells whose main function is to transport oxygen to the tissues. Anemia is a condition caused by iron deficiency, which is a micronutrient required for red cells to produce hemoglobin. When hemoglobin levels in red blood cells are low due to iron deficiency (anemia), then levels of oxygen in the blood are also lower than normal. In consequence, iron deficiency may cause that cellular tissues don't have sufficient oxygen to carry out their functions.
4
A floor turtle can use the following instructions:
INSTRUCTION
MEANING
FORWARD n
Move n mm forward
BACKWARD n
Move n mm backward
LEFT
Turn left t degrees
RIGHT
Turn right t degrees
PENUP
Lift the pen
PENDOWN
Lower the pen
REPEAT n
Repeat the following instructions n times
END REPEAT
Finish the REPEAT loop
Answer:
A floor turtle can use the following instructions: INSTRUCTION FORWARD n BACKWARD LEFT RIGHT PENUP PENDOWN REPEAT MEANING Move n mm forward Move n mm backward Turn left t degrees Turn right t degrees Lift the pen Lower the pen Repeat the following instructions n times Finish the REPEAT loop END REPEAT 45° 100 mm start Complete the set of instructions to draw this shape by filling in the blank lines. PEN DOWN 90 REPEAT FORWARD LEFT 6 A student wishes to use floor turtle to draw this shape: Name and explain the meaning of three instructions that the turtle graphics software would need to contain in order to draw the shape. 20 40 10 45 85 Instruction 1 Meaning Instruction 2 Meaning Instruction 3 Meaning [6] E.
Which term identifies a group of cells that work together to perform a similar function? Molecule Organism Organ Tissue
Answer:
Explanation:
Nucleus
Answer:
Tissues
Explanation:
There are four different types of tissues which are connective, epithelial, muscle and nervous. They all work together to perform similar functions. There are more than one tissues in organs that would work together.
Protozoa are a type of unicellular organisms.
True
False
Answer:
True
Protozoa are eukaryotic unicellular organisms.
It's true lol and why do you take forever to get clothes?
What is a light-year?
Answer:
light year is a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 ×10^12 km (nearly 6 million million miles).
Answer: A light year is a unit of astronomical distance used to measure the distance light travels in one year.
How would the Earth system be different if ice sank in liquid water?
Answer:
This ice layer insulates the water below it, allowing it to stay liquid, which allows the life within it to survive. If ice sank, the liquid water on top would also freeze and sink, until all the liquid water became frozen. Water is less dense as a solid, than as a liquid, which is why ice floats.
That is the best I got for you!!!
Answer:
If ice sank in liquid water the liquid water on top would also freeze and sink until all the liquid water became frozen. Feel free to correct me if im wrong
Corona means____ and most human corona viruses cause ____ symptoms in humans. A. Circle, mild B. Crown, major C. Crown, mild
Answer: the answer is c for both
Explanation:
Using this illustration as a guide, indicate the level one would need to drill to gain a sample containing the highest ratio of parent rock in comparison with organic material.
horizon C
horizon A
horizon B
horizon O
Answer:
horizon C
Explanation:
The horizon C has the highest ratio of parent rock as compared to organic matter. This horizon starts after horizon B and present above the bed rock. This horizon consists of weathered and partially decomposed rocks. It is the actual layer of soil of that place whereas the other horizon A and B comes with the passage of time when the wind bring the soil particles and these particles deposits on this layer of the soil making horizon A and B.
Margo is designing an experiment to investigate the rock cycle. She has written the following steps.
Step 1: Gather shavings from different colors of crayons.
Step 2: Place a small pile of shavings between sheets of waxed paper and press down on them lightly.
Step 3: Place a small pile of shavings between sheets of waxed paper and press down on them with great force.
Step 4: Compare the results produced in Steps 2 and 3.
Which question might Margo be investigating?
Margo is investigating about :
How does the pressure involved affect the formation of sedimentary rock?
What is sedimentary rock ?
Sedimentary rocks are formed from deposits of pre-existing rocks or pieces of once-living organism that accumulate on the Earth's surface.
How are sedimentary rock formed ?
Sedimentary rocks are formed from deposits of pre-existing rocks or pieces of once-living organism that accumulate on the Earth's surface. If sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.
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In Drosophila, the genes for eye color, wing shape, and wing length are located on chromosome II. Purple eyes (pr), arc bent wings (a), and vestigial wings (vg) are the mutant forms of the wild type traits red eyes, straight wings, and long wings, respectively. You've discovered some data in your genetics laboratory which indicates that the distance between vg and pr is 12.5 m.u., the distance between a and pr is 44.7 m.u., and the distance between a and vg is 32.2 m.u. what is the chance of a double crossover between these three genes
Answer:
The expected double recombinant frequency = 0.0402 = 4.02%
Explanation:
Available data:
genes for eye color, wing shape, and wing length are located on the same chromosomePurple eyes (pr) is the mutant form of the wild type traits red eyes (pr+)Arc bent wings (a) is the mutant form of the straight wings (a+)Vestigial wings (vg) are the mutant forms of the long wings (vg+)the distance between vg and pr is 12.5 m.uthe distance between a and pr is 44.7 m.uthe distance between a and vg is 32.2 m.u→ Two genes that are very close will have a few recombination events and are strongly bounded.
→ The map unit is the distance between the pair of genes for which every 100 meiotic products, one of them results in a recombinant one.
1) First, we need to know their order in the chromosome, and to do so, we need to compare the distances between them.
The most distant pair is a-pr
----a---------------------------------------------pr---
║-------------------44,7 MU-------------║
From gene a to vg there are 32.2 MU
----a-----------------------------vg--------------pr---
║-------------------44,7 MU-------------║
║----------32.2 MU------║
Finally, de distance from vg to pr is 12.5 MU
----a-----------------------------vg--------------pr---
║-------------------44,7 MU---------------║
║----------32.2 MU------║--12.5 MU--║
We can name region I to the distance between a-vg, and region II to the distance between vg-pr.
2) To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cM. And that the maximum recombination frequency is always 50%.
1 MU -----------1% of recombination
32.2 MU -----X = 32.2 % of recombination
12.5 MU-------X = 12.5 % of recombination
3) The expected double recombinant frequency = recombination frequency in region I x recombination frequency in region II.
The expected d. recombinant frequency = 32.2% x 12.5% = 0.322 x 0.125
The expected double recombinant frequency = 0.0402 = 4.02%
How is gamete formation different in females than in males?
a) Males produce four functional sperm while females produce only one functional egg.
b) Males produce only one functional sperm while females produce four functional eggs.
c) Males produce four genetically identical sperm while females produce four genetically different eggs.
d) Males produce four genetically different sperm while females produce four genetically identical eggs.
The combination of fibers and ground substance in fluid connective tissue is known as
A) ground substance
B) fat
C) cytosol
D) plasma
3. What is the difference between cotyledons in dicot seeds and the endosperm in monocot seeds?
Explanation:
Monocots contain a single cotyledon in their seed and dicots contain two cotyledons. The nutrients in the endosperm of dicots is absorbed by the two cotyledons. Therefore, a tiny endosperm is found inside the dicot seed. However, the main difference between cotyledon and endosperm is in their function during seedling.
why the walls of atrium are thin?
only about atrium thinner not than ventricles plz
This is because blood is pumped out of the heart at greater pressure from these chambers compared to the atria. ... This is due to the higher forces needed to pump blood through the systemic circuit (around the body) compared to the pulmonary circuit.
The walls of the atria are thinner because the atria doesn't need to pump blood to the whole body, it only needs to transport it to the ventricles.
A scientist is studying metabolic rate in a Giant Hummingbird in Peru. The scientist assumes a captured individual has been feeding on nectar (glucose) recently, but in fact the individual has not fed in the last hour and is currently metabolizing fat (palmitic acid). 3. Calculate the measurement error the scientist would introduce based on their faulty assumption if the scientist were measuring CO2 production. Will the scientist over- or underestimate metabolic rate
Answer:
Yes.
Explanation:
Yes, the scientist underestimate the metabolic rate of Giant Hummingbird. The scientist experience the measurement error due to non-feeding of Giant Hummingbird that leads to faulty assumption when the scientist were measuring CO2 production because the Giant Hummingbird breakdown the fats of the body for the release of energy instead of glucose. There is difference in the production of carbondioxide rate due to difference in the composition of fats and glucose.
Which statement below describes the best reason scientists think cystic fibrosis can be treated with gene therapy? Cystic fibrosis -
kills many individuals before they can reproduce.
is caused by a single gene on one chromosome.
can't be passed on from parent to child.
presents with different symptoms in each person.
Answer:
kill many individuals before they can reproduce
C. In which situation is the paramecium in danger of swelling up and bursting?
Answer:
hypotonic solutions
Explanation:
hope im right
There is a risk of paramecium to swell and burst in hypotonic solutions.
What is Hypotonic solution?A hypotonic solution is defined as a solution that has a lower solute concentration than any other solution. A solution cannot be hypotonic, isotonic, or hypertonic without the solution of comparison. It is a description of the solute content of one solution with respect to another solution.
If the surrounding solution has a lower solute concentration than the solute concentration inside the cell, the solution is said to be hypotonic. When a cell is exposed to a hypotonic environment, there is an influx of water and this results in swelling of the cell. For example, in hypotonic solutions the paramecium swells and burst in danger.
Thus, there is a risk of paramecium to swell and burst in hypotonic solutions.
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Consider a breeder that mates two heterozygous black Staffordshire bull terriers over the course of three years. The dam eventually produces 16 puppies: 11 are black like the parents, 4 turn out white, and 1 turns out gray colored. As a genetics student, what do you think of this outcome
Answer:
Different colour occur due to heterozygous nature.
Explanation:
Most of the puppies just like parents because the black colour gene or allele is dominant over other colour allele whereas other colour puppies also formed due to presence of heterozygous type of alleles. Other colour occurs due to appearance of recessive allele in the physique of the offspring or formation of hybrids occurs which causes colour other than black and white in the offspring. In the F1 generation all the offspring resembles to the male parent but after this generation some offspring resembles to male, some are hybrids and other resembles to female.
How do Earth's systems respond to change?
Explanation:
It responds to big changes including changes in output from the sun, plate tectonic movements, and random asteroid impacts from space.
Which process can occur in both mitosis and meiosis?
Answer:
both involve cell division
Explanation:
How would an increase in the global surface air temperature affect the
water cycle?
Answer:
The answer is b because with more air the clouds would get more water and when the clouds get full it will rain and may cause a flood
Explanation:
i love your pfp by the way
Answer :
Climate change intensifies this is cycle because as air temperature increases, more water evaporates into the air. Warmer air can hold more water vapour, which can lead to more intense rainstorms, causing major problems like extreme flooding in coastal communities around the world.
Unscramble the following terms a) Tunlraimtnoi b) iainmtv c) Emaian
Answer:
Explanation:
a) Tunlraimtnoi = malnutrition
b) iainmtv = vitamin
c) Emaian = anemia
hope it helps :)
Answer:
a) malnutrition b) vitamin c) anemia
Explanation:
What are the Negative impacts of genetically modified crops
answer:
the use of some gm crops can have negative impacts on non-target organisms and on soil and water ecosystems.
explanation:
for example, the expansion of gm herbicide-tolerant corn and soy, which are twinned with herbicides, has destroyed much of the habitat of the monarch butterfly in na.
good luck :)
i hope this helps
have a great day !!
Give two examples of homeostasis in the digestion process?
Answer:
Two examples may be
1. Acid and Base balance
and/or
2. Fluid volumes
Explanation: