Biology AIR test Review - #1

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene.

Front

What is the resulting mRNA sequence from the DNA sequence ACTGTAACC?

Back

UGCAUUGG

Front

What is the DNA sequence TAC-CGT-CCG-ACC-TTA?

Back

This is a DNA sequence that can be transcribed into mRNA.

Front

What is the effect of substitution at position six in a DNA sequence?

Back

It can change the resulting amino acid in the protein.

Front

What should you do if you don't know the answer to a question on a test?

Back

Give it your best guess or mark for review to come back later.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosome for protein synthesis.

Front

Define allele.

Back

An allele is a variant form of a gene that can produce different traits.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their trait even if only one copy is present, while recessive alleles require two copies to express their trait.

Front

What is transcription in the context of genetics?

Back

Transcription is the process of copying a segment of DNA into RNA.

Front

What is the purpose of a codon in mRNA?

Back

A codon is a sequence of three nucleotides that corresponds to a specific amino acid.