Scelta multipla
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
Scelta multipla
In humans, how many chromosomes are present in each somatic (body) cell?
A
44 chromosomes
B
48 chromosomes
C
46 chromosomes
D
23 chromosomes
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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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