Textbook Question
Consider the following segment of DNA:
5'-...ATGCCAGTCACTGACTTG...-3'
3'-...TACGGTCAGTGACTGAAC...-5'
How many phosphodiester bonds are required to form this segment of double-stranded DNA?
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1. Introduction to Genetics
Fundamentals of Genetics
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
How many chromosomes are present in a typical human somatic (body) cell?
A
92
B
44
C
23
D
46
Verified step by step guidance1
Understand that human somatic cells are diploid, meaning they contain two sets of chromosomes—one set inherited from each parent.
Recall that the haploid number (n) for 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: $2 \times 23$.
This calculation gives the total number of chromosomes present in a typical human somatic cell.
Recognize that the correct answer corresponds to this total number of chromosomes.
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