Why does sexual reproduction increase the genetic variation in a species?

Biology

2 answers:

riadik2000 [5.3K]3 years ago

7 0

D. A fertilized egg has a mixture of alleles from the two parents

Harman [31]3 years ago

6 0

Answer:

a fertilized egg has a mixture of alleles from the two parents

Explanation:

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cricket20 [7]

Answer:

The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.

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3 years ago

Jennipher was asked by her mother to take a certain kind of fish in a bucket full of water so that she can prepare it for meal.w

MA_775_DIABLO [31]

The fish use reacting behavioural mechanism in order to protect itself from the danger.

The fish uses reacting behavioural mechanism when the fish sense any type of danger surrounds it. This behaviour is a type of defense mechanisms which is used to defend and protect itself.

The fish apply electric shock in order to protect itself from the attackers and give harm to the other organisms which comes in contact with it so we can conclude that the fish use reacting behavioural mechanism in order to protect itself from the danger.

Learn more about behaviour here: brainly.com/question/24519685

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2 years ago

Which of the following best describes what causes water molecules to exhibit properties such as cohesive and adhesive behavior?

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trust me..
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