SB2 abc Mega Review

Front

What is the orientation of the two strands of DNA?

Back

Antiparallel

Front

What is one application that is NOT associated with Gene Therapy?

Back

Crime scene investigation.

Front

What type of mutation occurs when one base is replaced by another?

Back

Substitution

Front

Why are advantageous traits more likely to be passed onto offspring?

Back

Because they are more likely to survive and reproduce.

Front

What phase of meiosis is characterized by the alignment of chromosomes?

Back

Prophase I

Front

What is the process by which DNA is copied to RNA?

Back

Transcription

Front

What is the role of ribosomes in protein synthesis?

Back

They translate mRNA into amino acids.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even in the presence of a recessive allele, while recessive alleles only express their trait when two copies are present.

Front

What is a frameshift mutation?

Back

A mutation caused by insertions or deletions that shift the reading frame of the genetic code.

Front

What is the significance of genetic variation in a population?

Back

It increases the chances of survival and adaptation to changing environments.