Mutant Forms of Tumor-Suppressor Genes Act _____;Both Copies of the Gene

question 28

Multiple Choice

Mutant forms of tumor-suppressor genes act _____;both copies of the gene must be _______ before their protective function is lost.

• A)as dominant Mendelian traits,mutated or deleted
• B)as dominant Mendelian traits,preserved
• C)recessively,mutated or deleted
• D)recessively,preserved
• E)like sex-linked recessive genes,mutated or deleted

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Definitions:

Genetics

The branch of biology that deals with heredity and the variation of inherited characteristics among similar or related organisms.

Heredity

The transfer of physical or mental characteristics genetically from one generation to another.

Fraternal Twins

Twins that develop from two different eggs fertilized by two different sperm cells, resulting in siblings that are genetically distinct, similar to regular siblings.

IQ

IQ, or Intelligence Quotient, is a measure of a person's reasoning ability compared to the statistical norm or average for their age, taken as 100.