Ask Question
BiologyBiology
11 June, 05:04

No two people are genetically identical, except for identical twins. The main source of genetic variation among humans is

a. new mutations that occurred in the preceding generation.

b. genetic drift.

c. the reshuffling of alleles in sexual reproduction.

d. environmental effects.

+3
Answers (1)
  1. 11 June, 05:23
    0
    c. the reshuffling of alleles in sexual reproduction.

    Explanation:

    During gametogenesis, meiosis occurs in reproductive cells. As a result, haploid gametes are produced. During meiosis, a process called 'crossing over' occurs in the pachytene stage of prophase I of meiosis. During crossing the chromosome segments are exchanged between non-sister chromatids of homologous chromosomes. Exchange of chromosome segment creates a new combination of genes or genetic recombination and produces hybrids. Thus, genetic variation occurs in all sexually reproducing organisms due to crossing over.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “No two people are genetically identical, except for identical twins. The main source of genetic variation among humans is a. new mutations ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
This is a type of resource that is replenished by a natural resource faster than it is consumed.
Answers (2)
Lightning occurs mainly during which stage of thunderstorm formation?
Answers (1)
A scientist makes a discovery that suggests a hominid species created and used relatively sophisticated tools. The scientist decides to publish his findings.
Answers (1)
2. In a certain plant, the allele for red flower color (R) is dominant over the allele for white flower color (r). A cross is performed between a plant with red flowers and a plant with white flowers.
Answers (1)
Which of the following describes a relationship of parasitism? A. Oxpecker birds eat parasitic ticks off the backs of zebras. B. Birds feed off the insects that are stirred up from the grasses as cattle move through. C.
Answers (2)
New Questions in Biology
Homologous structures (Group of answer choices): A. are also called analogous structures. B. have identical functions. C. are shared by organisms of the same genus. D. have fully divergent functions. E.
Answers (1)
Which of the following is true of an enzyme? (mark all that apply) a. it is a protein b. it is a catalyst c. it binds to many different substances d. it is small compered to its substrates
Answers (1)
Which term would be applied to a regulatory condition that occurs when protein is associated with a particular section of DNA and greatly reduces transcription? A) induction B) negative control C) stimulation D) positive control E) activation
Answers (1)
1. The reproductive parts of angiosperms are located within the called the and the female part is called the The male part is 2. In angiosperms, pollen produces cells. Pollen sticks to the female and travels down the style to the ovary.
Answers (1)
Why would over-inflating the cuff of the sphygmomanometer be a problem for the patient?
Answers (1)
Home » Biology » No two people are genetically identical, except for identical twins. The main source of genetic variation among humans is a. new mutations that occurred in the preceding generation. b. genetic drift. c.
Sign Up Forgot Password?