Multiple Choice
Which of the following best describes trait variation in genetics, and which is an example of it?
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1. Introduction to Genetics
Fundamentals of Genetics
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In humans, how many pairs of chromosomes are present in a typical somatic cell?
A
23
B
46
C
24
D
22
Verified step by step guidance1
Understand that humans are diploid organisms, meaning their somatic cells contain two sets of chromosomes—one set inherited from each parent.
Recall that the total number of chromosomes in a typical human somatic cell is 46.
Since chromosomes come in pairs, divide the total number of chromosomes by 2 to find the number of pairs.
Use the formula: $\text{Number of pairs} = \frac{\text{Total chromosomes}}{2}$.
Calculate $\frac{46}{2}$ to determine the number of chromosome pairs in a typical human somatic cell.
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