Multiple Choice
Which of the following cell types lacks a nucleus?
3. Extensions to Mendelian Inheritance
Sex Chromosome
Multiple Choice
In a human karyotype, there are 22 pairs of autosomes and 1 pair of which type of chromosomes?
A
Sex chromosomes
B
Centromeric chromosomes
C
Telomeric chromosomes
D
Mitochondrial chromosomes
Verified step by step guidance1
Recall that a human karyotype consists of 23 pairs of chromosomes in total.
Understand that 22 of these pairs are autosomes, which are chromosomes that do not determine sex.
Identify the remaining 1 pair as the chromosomes responsible for determining the biological sex of an individual.
Recognize that these chromosomes are called sex chromosomes, typically labeled as X and Y in humans.
Note that centromeric and telomeric refer to chromosome regions, and mitochondrial chromosomes are found in mitochondria, not in the karyotype.
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