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Marianna [84]
2 years ago
13

Q3. How does the fact that DNA Replicates semiconservatively decrease the

Biology
1 answer:
LuckyWell [14K]2 years ago
7 0
If the DNA polymerase did nothing special when a mispairing occurred between an incoming deoxyribonucleoside triphosphate and the DNA template, the wrong nucleotide would often be incorporated into the new DNA chain, producing frequent mutations. The high fidelity of DNA replication, however, depends not only on complementary base-pairing but also on several “proofreading” mechanisms that act sequentially to correct any initial mispairing that might have occurred.
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A gene has 2 alleles, R & B, List the possible genotypes? I also need help with questions 5, 6, 7 and 8 please help! Pls loo
irakobra [83]

Answer:

5.) The possible genotypes should be: RR RB BB ( if the could for the same proteins)

6.) Frequency of R: 0.5

7.)Frequency of R: 0.5

8.)Frequency of R: 0.375

Explanation:

5.) If R and B code for the different forms of the same protein then they are only a few possible out comes

6.) First calculate the total alleles in population

allele R= 40

Allele B=40

total allele = R+B= 40+40

=80

Now to find allele R frequency is:

(Total R alleles) / (Total allele in pop)

40/80=

0.5

7.)Calculate the total alleles

Alleles from for R

RR= 10

R=10x 2= 20

Multiply the value by 2 because there are 2 R alleles present in

RB=20

R=20

Number doesn't change there is only 1 R allele

Total R=20+20

=40

Alleles For B

BB=10

B=10×2

=20

Same thing here, two B alleles together so multiple by 2

RB=20

B=20

Total B= 20+20

=40

Total alleles in pop add

40+40

=80

Frequency of R

Total of R/Total Alleles

=40/80

=0.5

8.)Repeat the same thing in 7 but use different numbers

RR=10

R=10x2

=20

RB=10

R=10

Total R= 20+10

=30

5 0
3 years ago
Which of the following are NOT functions of the spinal cord?
maksim [4K]

Answer:

Reflexes are not a function of the spinal cord.

Explanation:

The spinal cord is part of the central nervous system and is made up of neurons that go along it (from the end of the brain stem almost to the bottom of the spine).

The spinal cord receives incoming messages from the peripheral nervous system (including the sensory neurons) and pass on messages from the brain to efferent neurons (motor neurons at muscles).

The spinal cord contributes to learning as it passes on the info received from sensory neurons (that there is an obstacle in the path) to the brain and passes on the response from the brain to the muscles (to lift the foot up higher).

The spinal cord is essential for integration as it passes on sensory information  to the brain to determine motor output.

Reflexes are when sensory information is quickly sent straight to motor neurons to move. It does not need to go to the brain (hence does not need to go to the spinal cord) for the reaction as it would be too slow. This is seen when someone who is paraplegic (paralysed at lower torso) can still move their leg in response to the doctor tapping their knee even when they cannot forcibly move their legs.

Therefore reflexes are not a function of the spinal cord.

4 0
2 years ago
Read 2 more answers
In an endothermic reaction, energy _____. exits the reaction is absorbed by the reaction stays the same throughout the reaction
belka [17]
In an endothermic reaction, energy is absorbed which causes the object to heat up. 
4 0
2 years ago
How does land use change as the human population increases?
tia_tia [17]
The answer is below!


3 0
2 years ago
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pooled image-base screening of mitochondria with microraft isolation distinguishes pathogenic mitofusin 2 mutations | communicat
Genrish500 [490]

Screening of mitochondria which is pooled image-based with micrograft isolation distinguishes pathogenic mitofusion to mutations.

<h3>What is pooled screening?</h3>
  • More complicated strategies were needed for pooled screening platforms that include complex traits only visible under a microscope. There are a few methods for maintaining information about the cell's physical location, which is necessary for mapping phenotypic to disruption.
  • Using customized non-commercial sequencing rigs, some platforms use in situ sequencing (ISS) to produce sequencing findings that include positional data of a particular cell. Other technologies use targeted cells to photoactivate endogenous fluorophores, which are then subjected to FACS-seq.
<h3>What is Mitochondria?</h3>

Mitochondria is termed as the power house of the cell as it provides the energy and power to the overall cell.

To know more about Mitochondria visit

brainly.com/question/25503892

#SPJ4

4 0
11 months ago
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