GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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fruit fly = 4; human = 23; potato = 24; garden pea = 7
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fruit fly = 4; human = 46; potato = 12; garden pea = 7
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fruit fly = 8; human = 46; potato = 48; garden pea = 14
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fruit fly = 16; human = 92; potato = 96; garden pea = 28
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Detailed explanation-1: -The allele for the ability to taste this substance is dominant. Which statement about the genotypes of the sisters Mary and Jeanne is correct? A Mary is heterozygous and Jeanne is homozygous.
Detailed explanation-2: -The somatic cells are diploid cells and contain 2n chromosomes while the germ cells give rise to gametes which are haploid. They contain half the number of chromosomes or n. Thus, an alligator sperm cells will have the number of chromosomes present in the somatic cells and it contains 16 chromosomes.
Detailed explanation-3: -For instance, the number of chromosomes is based on how the organism happens to divide up its DNA. Whether the DNA is in 6, 46, or 1260 pieces, it doesn’t actually mean there’s more information. It just means the information is in many more pieces.
Detailed explanation-4: -Human placental lactogen (hPL). This hormone is also known as human chorionic somatomammotropin. It is made by the placenta.