Textbook Question
If humans have 23 pairs of chromosomes, each carrying hundreds to thousands of genes, roughly how many genes are there in the human genome?
a. 23
b. 46
c. 1000
d. 20,000
e. 200,000
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12. Meiosis
Homologous Chromosomes
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How many pairs of homologous chromosomes do humans typically have?
A
23 pairs
B
24 pairs
C
46 pairs
D
22 pairs
Verified step by step guidance1
Understand the concept of homologous chromosomes: Homologous chromosomes are pairs of chromosomes in a diploid organism that have the same structure and carry genes for the same traits, one inherited from each parent.
Recall the total number of chromosomes in a typical human cell: Humans have 46 chromosomes in total.
Determine how these chromosomes are organized: In humans, these 46 chromosomes are organized into 23 pairs.
Identify the nature of these pairs: Each pair consists of one chromosome from the mother and one from the father, making them homologous.
Conclude the number of homologous chromosome pairs: Since humans have 23 pairs of chromosomes, the correct answer is 23 pairs of homologous chromosomes.
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