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3 years ago

What function does recombination by crossing-over have in genetic variation?

1 answer:

3 0

Answer: Crossing-over allows the genes that come from each parent to recombine before they are passed on to future generations because chromatids of homologous chromosomes mate and exchange sections of their DNA.

Explanation:

Chromosome crossing-over is the process by which chromatids of homologous chromosomes mate and exchange sections of their DNA during prophase I of meiosis, when pairs of homologous chromosomes, or of the same type, are aligned. The chromatids of the homologous chromosomes break off in the chiasmas and rejoin to allow recombination of the linked genes. So it occurs when regions at chromosome breaks mate and then reconnect to the other chromosome. The result of this process is an exchange of genes, called genetic recombination.

This allows the genes that come from each parent to recombine before they are passed on to future generations. Then, it is an important source of genetic variability, since it involves an exchange of segments between homologous chromosomes during the development of gametes. This process allows that the descendants of an individual are genetically very different, since it is very unlikely that an individual produces two equal gametes, because all of them have different segments of the homologous chromosomes.

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2 decided by 5/12 in fraction

Rudiy27

Answer:

$\frac{24}{5}$

Explanation:

$\frac{2}{1}$ ÷ $\frac{5}{12}$ =

To change the ÷ sign to a × sign, swap the denominators and the numerators of the second fraction.

$\frac{2}{1}$ × $\frac{12}{5}$ = $\frac{24}{5}$

Directly multiply. Numerators with numerators and denominators with denominators.

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2 years ago

Describe the relationship between evolution, genetic mutation, and the environment.

Nadusha1986 [10]

Answer:

The meaningful differences between organisms in a population are genetic. Variations in the genome of members of a population arise through mutation. Occasionally, a mutation occurs in an individual that is beneficial, that helps that organism be better able to survive and repoduce in its current environment.

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1 year ago

If there are probability of 50% of producing male gamete then what would be the probability of producing transgender. When fathe

Vaselesa [24]

The probability of producing a transgender = None ( D ) when the father is gay

The probability of producing male gamete is not affected by the sexual orientation of the Father because the production of the male gamete is carried by the spermatogonia found in the testes of a male. and every male specie regardless of your sexual orientation have testicles where the spermatogonia undergoes mitotic divisions to produce the male gametes.

Hence the probability of producing a transgender given that the father is gay is non-existent i.e.0%

Learn more : brainly.com/question/11508846

5 0

1 year ago

Read 2 more answers

5. ¿Por qué los cálculos de concentración de disoluciones son muy importantes en la industria?

hammer [34]

Answer:

Porque puede decirnos si su información incorrecta o información correcta

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2 years ago

What are the three terms used to locate the body parts of a frog?

zaharov [31]

Answer:

Explanation:

the heart pumps blood throughout the body, and the lungs aid in breathing. the body parts that are found on frog are the heart, the liver, and the stomach, etc.

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2 years ago