Question

which of the following statements describes the major reason that an individual with the genotype aabbccddee can make many kinds of gametes?
segregation of maternal and paternal alleles
crossing over during prophase i
different possible assortment of chromosomes into gametes
the tendency for dominant alleles to segregate together

question 4
1 pts
why did the f1 offspring of mendels classic pea cross always look like one of the two parental varieties?
no genes interacted to produce the parental phenotype.
each allele affected phenotypic expression.

Explanation:

• Segregation of maternal and paternal alleles: This is about alleles separating during meiosis but doesn't directly explain the variety of gametes in terms of combination.
• Crossing over during prophase I: While it contributes to genetic variation, it's not the major reason for the number of different gametes in this case. Crossing - over mainly exchanges genetic material between homologous chromosomes.
• Different possible assortment of chromosomes into gametes: According to Mendel's law of independent assortment, non - homologous chromosomes assort independently during meiosis. For an individual with genotype \(AaBbCCDdEE\), the number of different gametes is calculated by \(2^{n}\), where \(n\) is the number of heterozygous gene loci (\(n = 3\) here: \(Aa\), \(Bb\), \(Dd\)). The independent assortment of chromosomes (and thus the alleles on them) during meiosis leads to different combinations of alleles in gametes.
• The tendency for dominant alleles to segregate together: Dominant alleles do not have a tendency to segregate together. Alleles segregate independently according to Mendel's laws.

Answer:

different possible assortment of chromosomes into gametes