객관식
Under which genetic condition might a human female have an XY sex chromosome complement?
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3. Extensions to Mendelian Inheritance
Sex Chromosome
객관식
In humans, how many chromosomes are present in each somatic (body) cell?
A
44 chromosomes
B
48 chromosomes
C
46 chromosomes
D
23 chromosomes
검증된 단계별 안내1
Understand that humans are diploid organisms, meaning each somatic (body) cell contains two sets of chromosomes—one set inherited from each parent.
Recall that the total number of chromosomes in a human somatic cell is the sum of these two sets.
Know that each set, called a haploid set, contains 23 chromosomes, which are found in human gametes (sperm and egg cells).
Calculate the total number of chromosomes in a somatic cell by multiplying the haploid number by 2: \(2 \times 23\).
Conclude that the total number of chromosomes in each human somatic cell is 46.
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