➜ When the rate of photosynthesis is equal to rate of respiration, it is called as compensation point.
The rate of liberation of O2 during photosynthesis is equal to the rate of liberation of CO2 during respiration.Thus, there is no net uptake of gases from the environment.Compensation point is usually reached at dusk and down and on a cloudy day.A new protein factor named PF2 was recently isolated from mammalian cell nuclei. Among other protein domains, PF2 exhibits an RPD3-interacting domain (RPD3 contains the catalytic activity of the HDAC B complex) and a TFS-interacting domain (TFS is a DNA binding protein). PF2 does not have a DNA binding domain, however. Predict a likely function of PF2 and justify it. The importance of both domains should be explained.
Answer:
The likely functions of PF2 includes binding of several protein factors and DNA structure formation
Explanation:
PF2 contains RPD3 and TFS domains
The likely functions of PF2 includes binding and DNA structure formation
For the RPD3 domain that contains the catalytic activity of the HDAC B complex its function is to interact with other protein factors by binding with them and carrying out the process of the signaling cascade.
while the TFS - interacting domain have likely functions like ; DNA replication, DNA repair and storage. It also has the function involving the DNA structure
the fruit with multi seeds proves that the ovary had multi ________
The answer maybe 'Ovules'....
Answer:
Maybe it's follicles?.......
All of the following are differences in transcription, RNA processing, and translation between prokaryotes and eukaryotes except _______. View Available Hint(s) All of the following are differences in transcription, RNA processing, and translation between prokaryotes and eukaryotes except _______. the promoters in prokaryotes have a -35 and -10 box while in eukaryotes they are variable but have a TATA box from the transcription initiation site there is a single RNA polymerase in prokaryotes while eukaryotes have multiple RNA polymerases the mRNA goes through extensive modifications such as addition of a poly tail and a 5' cap in eukaryotes but not in prokaryotes the sigma factor associates with the promoter region in prokaryotes but in eukaryotes there are many basal transcription factors
Answer:
the mRNA goes through extensive modifications such as addition of a poly tail and a 5' cap in eukaryotes but not in prokaryotes.
Differences:
- the promoters in prokaryotes have a -35 and -10 box while in eukaryotes they are variable but have a TATA box from
- the transcription initiation site there is a single RNA polymerase in prokaryotes while eukaryotes have multiple RNA polymerases
- the sigma factor associates with the promoter region in prokaryotes but in eukaryotes there are many basal transcription factors
Explanation:
Ribosomal and transfer RNAs are processed both in prokaryotic and eukaryotic organisms. However, mRNA is only processed in eukaryotes. In eukaryotic cells, mRNA processing involves:
1. Capping at the 5' end. This process has several functions including regulation of nuclear export, prevention of eukaryotic mRNA degradation and promotion of translation.
2. Splicing in order to remove introns and conserve coding exons. Splicing helps to increase the diversity of the eukaryotic mRNAs (and therefore eukaryotic proteins)
3. Polyadenylation by the addition of a poly(A) tail at the 3' end. The poly(A) tail makes the eukaryotic mRNA molecule more stable and also prevents its degradation by exonucleases.
Factors that affect the diffusion
Answer:
Temperature is one factor that can affect the rate of diffusion. Diffusion occurs faster in warmer temperatures, and occurs slowly in cooler temperatures.
What is the purpose of using integrated pest management?
A) spending more money on pest controls
B)controlling pest
C)there is no purpose
D) protect the environment while controlling pest
The diagram shows a process taking place between molecules X and Y that provides energy to cells.
What are molecules X and Y?
Answer:
They are ATP and ADP. ....
Question 4 (2 points)
Write the complimentary base pairs for the following DNA sequence,
ATG CTA
Answer:
The answer would be TAC GAT
Explanation:
Because A (Adenine) pairs with T (Thymine), and vice versa
and G (Guanine) pairs with C (Cytosine)
Mercury is often used in thermometers. The mercury sits in a bulb on the bottom of the thermometer and rises up a thin capillary tube as the temperature rises. Suppose a mercury thermometer contains 3.380g of mercury and has a capillary that is 0.200mm in diameter. How far does the mercury rise in the capillary when the temperature changes from 0.0 0C to 25.0 0C
Answer:
3.5 cm
Explanation:
Mass of mercury = 3.380
Diameter = 0.200
At t = 0 and 25 degrees we have 13.596 and 13.543 as density
At 0 degree = v = 3.380/13.596 = 0.2485
At 25 degrees = 3.380/13.534 = 0.2497
We use volume of cylinder to get height
At 0⁰ height = 7.91
At 25⁰ = 7.944
The difference in height = 0.035
Multiply by 100 = 0.35 x100
= 3.5cm
The sequence below corresponds to the first 15 bases of the open reading frame of the E.coli cysS gene. For each of the following mutation sequences, determine the amino acid sequence encoded by the 15 bases, identify whether the mutation is a transition, transversion, insertion, deletion. Also identify whether the mutation is a missense, nonsense, silent or frame-shift mutation. 5' ATG CTA AAA ATC TTC a. 5' ATG CTA AAG ATC TTC b. 5' ATG CTA TAA ATC TTC c. 5' ATG CTA AAA AAT CTT d. 5' ATG CGA AAA ATC TTC
Answer:
a) silent mutation (Transition mutation )
b) nonsense mutation. (Transversion mutation)
c) frame-shift mutation ( insertion mutation )
d) missense mutation ( transversion mutation )
Explanation:
For 5' ATG CTA AAA ATC TTC
The WT sequence ; M L I K F
a) For 5' ATG CTA AAG ATC TTC
The Mutated sequence : M L K I F
The mutation here is a silent mutation i.e. Transition mutation takes places at the 9th position of the nucleotide sequence
b) For . 5' ATG CTA TAA ATC TTC
The Mutated sequence ; M L STOP
The mutation here is a nonsense mutation. that is a Transversion mutation as well
c) For 5' ATG CTA AAA AAT CTT
The mutated sequence is MLKNL
The mutation here is a frame-shift mutation ( i.e. also insertion mutation
d) For 5' ATG CGA AAA ATC TTC
The mutated sequence is MRKIF
The mutation here is a missense mutation ( i.e. also transversion mutation )
According to the chart below, which planet contains the most hydrogen gas?
Saturn
Jupiter
Venus
Earth
Answer:
Saturn
Explanation:
As you can see from the chart, the hydrogen gas is labeled by the turqoise part of the bar chart. To find which one has the most hydrogen gas, select the planet where the bar with hydrogen gas is the highest. If you compare, you will notice that neptune and jupiter have the least because the hydrogen gas is lowest on the bar chart, Saturn and uranus have a higher concentration of this gas but saturn has more than uranus respectively.
There are several buffer systems involved in maintaining blood pH, but one is more important than the others for maintaining acid-base homeostasis in blood. To understand why an acid-base imbalance in the blood results from respiratory depression, you must first identify the major buffer system responsible for controlling blood pH. Which equilibrium reaction is the most important for maintaining acid-base homeostasis in the blood?
Answer:
The Carbonic-Acid-Bicarbonate Buffer. In animals with lungs, the carbon / bicarbonate buffer system is especially effective. In these animals, the H2CO3 in the blood plasma is in equilibrium with the gaseous CO2 present in the airspace of the lungs, which represents a practically unlimited reserve of CO2 that can participate in the equilibrium.
Explanation:
In the Carbonic-Acid-Bicarbonate buffer system, 3 reversible equilibria take place between the CO2 gas in the lungs and the bicarbonate dissolved in the blood. The bicarbonate ion (HCO3-) can combine with a proton (H +) to form carbonic acid (H2CO3), thus absorbing protons from solution and raising blood pH. Carbonic acid, which can be formed from CO2 and water, can dissociate into H + and HCO3- to provide H + and lower blood pH. Carbonic acid, which can be formed from bicarbonate, is converted to CO2 and water by a very fast enzymatic reaction. CO2, being volatile, can be rapidly eliminated from the body in variable amounts through respiration.In the clinic, the system that is measured for the assessment of the acid-base status is the carbonic / bicarbonate system.
1. A customer from a previous season comes into your store confused. A
bed of pink four o'clock flowers she planted the previous season self-
seeded and produced a mixture of about 1/4 red, 1/4 white, and 1/2 pink
flowers this year. The customer wants to know why the pink flowers are
now a mix of colors. This is possible because of ...
*
Answer:
The genes in flowers vary and change every season a little bit if they are not the perfect "pink" or "red" seed gene they will vary.
Hope this helps :)
how do water and living things interact?
7 difference between Arteries, vain and capillaries
Answer: Hope this helps answer in explanation.
Explanation:
1) These are responsible for the transportation of blood from the heart to all parts of the body. These vessels collect blood through capillaries and transport it towards the heart. These vessels connect arteries and veins.
2. All arteries carry oxygenated blood except pulmonary arteries which carry deoxygenated blood. All veins carry deoxygenated blood except pulmonary veins which carry oxygenated blood. These carry mixed oxygenated and deoxygenated blood.
3. Arteries have no valves in them except at the base of the pulmonary trunk and aorta. Valves are present in veins. These valves prevent the backflow of blood. There are no valves in them.
4. Arteries have high blood pressure. Veins have low blood pressure. There is falling pressure in them.
5. In arteries, waves of blood pressure or pulse due to heartbeat can be detected. There is no pulse. There is no pulse.
6. Blood flows rapidly between 400-500mm per second in the aorta and decreasing in arteries and arterioles. The rate of blood flow increases from smaller to larger veins. Blood flow is slowest which is less than 1mm per second.
7. Arteries have a smaller bore and thick walls. Veins have a larger bore and thin walls. Capillaries have a larger bore and the wall is of one cell in thickness.
8. There are thick muscle layers and elastic fibers present. The elasticity helps to change the pulsating flow of blood. There are thin muscle layer and less elastic fibers present in veins. So, they are less elastic. No muscles or elastic fibers are present.
9. There is no exchange of materials. There is no exchange of materials. These are responsible for the exchange of gases and nutrients.
5. Which of these would be the best thing for scientists to examine if they wanted to see if two organisms had a common ancestor?* O They would look at the larval forms of the organisms They would look at what the organisms liked to eat They would look at how the organisms reproduce. O They would look at how the organisms migrated to new locations
How can the efficiency of a system impact the environment, economy and society
Answer:
l don't konw the equation
If sports drinks have a higher solute concentration than blood, what condition may result when you drink them?
Which of the following is an inherited trait?
A. Freckles
B. Being a good reader
C. A birthmark
D. A scar
Answer:
A. freckles
Explanation:
inherited traits are things you are born with that resemble your parents like freckles, color hair and skin even eyes and other such things
The inheritance of traits depends on the genes, not on the somatic cells. In the given choices, freckles are inherited from parents to offspring.
What are freckles?Freckles are caused by either sun or by genes. The presence of this can be due to the genes carrying it.
Genetics and sun exposure is the main cause of freckles. There are a number of genes involved, and they can interact with one another in lots of different ways.
Somatic variations are not likely to get inherited.
Thus, the correct option is A.
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The number of students in a chess club decreased from 47 to 16. What is the percent decrease? Round
your answer to the nearest percent.
5. After the ovules are fertilized, what happens to the ovary?
O A. The ovary falls off.
O B. The ovary becomes a flower.
O C. The ovary becomes a seed.
O D. The ovary becomes a fruit.
After the ovules are fertilized, what happens to the ovary?
O A. The ovary falls off.
O B. The ovary becomes a flower.
O C. The ovary becomes a seed.
O D. The ovary becomes a fruit.
Answer:-D. The ovary becomes a fruit.
Explanation:-The ovaries contain ovules that grow into seeds when fertilized. The ovaries themselves surround the seeds and mature into either dry or fleshy fruits
What is DNA replication?
Answer:
DNA replication is the process by which DNA makes a copy of itself during cell division.
Hope it helps!!
Answer:
DNA replication is the process by which DNA makes a copy of itself during cell division. The first step in DNA replication is to 'unzip' the double helix structure of the DNA? molecule. ... The separation of the two single strands of DNA creates a 'Y' shape called a replication 'fork'.
the gas exhale during respiration
Answer:
carbon dioxide
Explanation:
when we inhale it is more of oxygen then carbon when we exhale we lose more carbon then oxygen.
A Helium atom has 2 protons in the center of its nucleus. Therefore its atomic number is 2. Its mass is
greater than the mass of these 2 protons. Which of the following accounts for this difference in mass?
A neutrons
B molecules
C nuclei
D electrons
Answer:
I dont know for sure, but I would have to say electrons. Please tell me if I'm wrong
Below is a list of physiological events involved in modulating respiratory rate. Using your knowledge from class, place the events in the correct order.
A. Medullary respiratory centers are stimulated.
B. CO2 levels in blood decline.
C. Somatic motor impulses are sent to the respiratory muscles.
D. Diaphragm and external intercostals contract at a faster rate.
E. More CO2 is exhaled.
F. Extracellular fluid surrounding brain decreases in pH.
G. PCO2 increases in blood H. CO2 produces H by reacting with water.
I. Central chemoreceptors are stimulated.
J. pH of brain extracellular fluid returns to normal.
Answer:
The events in the order are,
G. PCO2 increases in blood.
H. CO2 produces H+ by reacting with water.
F. Extracellular fluid surrounding brain decreases in pH.
I. Central chemorEceptors are stimulated.
A. Medullary respiratory centers are stimulated.
C. Somatic motor impulses are senT to respiratory muscles.
D. diaphragm and external intercostal muscles contract at a faster rate.
E. More CO2 is exhaled.
B. CO2 levels in blood decline.
j. pH of brain extracellular fluid returns to normal.
Explanation:
In physiological events that take place in modulating respiratory rate is a compensatory mechanism occurs in the case of respiratory acidosis. In respiratory acidosis, carbon dioxide level increases in blood so the partial pressure of carbon dioxide will be higher.
The high amount of carbon dioxide is responsible for the formation of the bicarbonate and hydrogen ion this process continues, which decreases the normal pH. Chemoreceptors sense this change that activates the respiratory centers. and sends motor signals for the contraction of inspiratory muscles, which increases the rate of respiration.
The correct order of events in listed above.
Which version of energy is more stable due to the release
of energy
a. adenosine triphosphate
b. adenosine diphosphate
Answer:
b. adenosine diphosphate
Answer:
the answer should be B. Adenosine Diphosphate.
Explanation:
because of how important it is to living organisms it has to be stable energy before release. I hope this helps.
I need no answer I am just here to give you points
Answer:
thanks lol :)
Explanation:
When breathing, which body was part contracts to help expand the lung and relaxes to allow air exhalation?
A. stomach
B. rib cage
C. diaphragm
D. brain
Answer: C: Diaphragm
Explanation:
A cleft chin in humans is coded by the dominant allele C. A chin without a cleft is coded by the recessive allele c. A man with a cc allele combination for the trait produces a zygote with a woman with a Cc allele combination for the trait. Which allele combinations could occur in the zygote?
Answer:
The allele combinations are: Cc, cc, Cc, cc
Phenotypically there is a 50% chance that the child will be born with or without the cleft
The allele combinations that could occur in the zygote is Cc or cc.
What is an allele combination?An identification of the specific alleles found at each of the relevant mouse loci on the two homologous chromosomes (i.e., all allele pairs of a genotype). One or more allele pairs can make up an allele combination.
Genetic linkage is the capacity of a chromosome to transmit alleles that are near to one another as a whole unit through meiosis. Inheritance of traits is also understood by this principle. It is useful in locating the genes that are in charge of characteristics and diseases.
The person is homozygous for the allele if the two alleles are the same. The person is heterozygous if the alleles are different.
Therefore, the zygote may include the allele combinations Cc or cc.
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general characteristics of tissue
Answer:
1: Epithelium
2: Connective tissue
3: Nervous tissue
Explanation:
Answer:
We have four major tissues the epithelium tissue, the muscle tissue ,the connective tissue and the nervous tissue . The Epithelium covers the body surface and lines body cavity .The muscle provide movement .The connective tissue support and protect the body organs .The nervous tissue provides a means of rapid internal communication by transmitting electrical impulses.What is permineralization?
Answer:
process of fossilization , which mineral deposits form internal casts of organisms.
Explanation:
Answer:
this is a process of fossilization in which mineral deposits from internal casts of organisms. when carried by water, these minerals fill the spaces within organic tissues. examples are most dinosaur bones, petrified wood and many trilobite fossils
Explanation:
when an organism is berried, the minerals which are carried by water, for example, silica, calcite or pyrite will replace the organic material in the fossil.