Growth Hormone

question 12

Multiple Choice

Growth hormone

• A)directly stimulates bone growth
• B)exerts its effects on bones via somatomedin release
• C)promotes closure of the epiphyseal plate
• D)does both a and c
• E)does both b and c

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Definitions:

Barr Body

A condensed and inactivated X chromosome appearing as a distinctive dense spot in the interphase nucleus of certain cells of female mammals.

Mammalian Female Cell

A cell within a female mammal, which may be specialized, such as an ovum, or somatic, like those forming tissues and organs.

Inactivated X Chromosome

Also known as the Barr Body; a dense body formed from a deactivated X chromosome found in the nuclei of female cells, ensuring dosage compensation between males and females.

Heterozygous

Having two different alleles of a gene, one inherited from each parent, resulting in genetic variation.