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Biology

All MCQs

Biology

121.

What is the term for the process by which DNA is copied to make a complementary strand of RNA?

A

B

C

D

122.

Which term describes the condition in which one gene masks the effect of another gene at a different locus?

A

B

C

D

123.

In a monohybrid cross, what is the genotypic ratio of offspring when crossing two heterozygous individuals?

A

B

C

D

124.

What is the term for a change in the sequence of DNA that can lead to a different genetic trait?

A

B

C

D

125.

Which type of inheritance involves the blending of parental traits in offspring?

A

B

C

D

126.

What is the term for the specific DNA sequence that signals the start of a gene and the beginning of transcription?

A

B

C

D

127.

In humans, which blood type is considered the universal recipient?

A

B

C

D

128.

What is the term for the loss of one or more chromosomes from an individual's genotype?

A

B

C

D

129.

Which genetic disorder is characterized by the presence of an extra chromosome 21 and is associated with intellectual disability and certain physical features?

A

B

C

D

130.

What is the term for the genetic makeup of an organism, represented by the combination of alleles?

A

B

C

D