객관식
Which of the following accurately describes the process of crossing over during meiosis?
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12. Meiosis
Genetic Variation During Meiosis
객관식
How many genetically distinct gametes are produced if crossing over does not take place during meiosis in an organism with a diploid number of 4?
A
8
B
2
C
4
D
16
검증된 단계별 안내1
Understand that the diploid number (2n) of the organism is 4, which means there are 2 pairs of homologous chromosomes.
Recall that during meiosis, homologous chromosomes are separated into different gametes. Each pair of homologous chromosomes can assort independently.
Use the formula for calculating the number of genetically distinct gametes: \(2^n\), where \(n\) is the number of pairs of homologous chromosomes.
Since the diploid number is 4, there are 2 pairs of homologous chromosomes (\(n = 2\)).
Calculate the number of genetically distinct gametes using the formula: \(2^2 = 4\).
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