Multiple Choice
Why is it important that human chromosomes have many origins of replication?
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3. Extensions to Mendelian Inheritance
Overview of interacting Genes
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In humans, how many chromosomes are present in each somatic cell?
A
46
B
23
C
92
D
44
Verified step by step guidance1
Understand that humans are diploid organisms, meaning each somatic cell contains two sets of chromosomes—one set inherited from each parent.
Recall that the haploid number (n) in humans is 23, which represents the number of chromosomes in gametes (sperm or egg cells).
Since somatic cells are diploid, calculate the total number of chromosomes by multiplying the haploid number by 2: \$2 \times 23$.
Recognize that this calculation gives the diploid number (2n), which is the total number of chromosomes in each somatic cell.
Conclude that the number of chromosomes in each human somatic cell is the diploid number, which is 46.
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