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Sexual reproduction cannot explain the origin of new alleles in a population. Nonetheless, how can sexual reproduction increase the genetic variation of a population? Which steps in sexual reproduction are responsible for this increase in genetic variation?

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Nestor Rutherford
Nestor RutherfordLv2
20 May 2018

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Related questions

Please double check your answer. Very important question for my assigment. Thanks

Genetic variation is accomplished BY ALL BUT ONE of the following. Which is it?

a) asexual reproduction

b) independent assortment

c) sexual reproduction

d) crossing over

Which of the following are requirements for evolution by naturalselection?

I Environmental change

II Differential survival and reproduction

III Heritability of phenotypic variation

IV Variation in phenotype

V Sexual reproduction

A) II, III, V
B) II, III, IV
C) I, II, IV
D) III, IV, V
E) II, IV, V

there could be more than one answer or no answer at all

1. _____ Females that reproduce sexually versus asexually are said to incur a “two-fold cost of sexual reproduction.” Which of the following costs are associated with sexual reproduction for females?

A) MALES! That do-nothing lot really does not directly contribute offspring to the next generation. Females would be better off making all daughters.

B) FEMALES! In most natural settings, those daughters compete with their mothers for potential mates and resources needed to successfully reproduce.

C) MITOSIS! Since sexual reproduction can produce many more offspring than asexual reproduction, there are energetic costs associated with the mitotic divisions required to produce those offspring.

D) MEIOSIS! Every time a gamete is produced, the parent loses a little bit of itself. Half to be precise since only half of its genes are passed on to sexually produced offspring.

E) DIVERSITY! Mothers maximize fitness if all offspring are genetically just like them. Sexual reproduction causes genetic diversity, which ultimately lowers the fitness of both parents.

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