Within the Nucleus of Each Sperm and Each Ovum There

question 342

Multiple Choice

Within the nucleus of each sperm and each ovum there are __________ chromosomes.

• A)23
• B)36
• C)46
• D)60

Understand demographic differences between rural and urban populations in Canada.

Grasp the historical and social context of First Nations people and government policies affecting them.

Compare the health outcomes of rural versus urban populations.

Understand the impact of education and curriculum delivery methods on healthcare.

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Definitions:

Genotype

The genetic makeup of an organism, consisting of all the DNA and genes present within its genome.

Dosage Compensation

Genetic mechanism by which the expression of X-linked genes is made equivalent in XX females and XY males; in mammals this is accomplished by rendering all but one X chromosome inactive.

X Chromosome Inactivation

A process by which one of the copies of the X chromosome present in female mammals is inactivated, ensuring that males and females have the same dose of the X chromosome genes.

X Chromosome Inactivation Center (XIC)

A critical region on the X chromosome that controls the process of X chromosome inactivation during female development.