EOC Review PBS Unit 2

Front

What does homozygous mean?

Back

Homozygous refers to having two identical alleles for a particular gene.

Front

What is a negative feedback loop?

Back

A negative feedback loop is a process that counteracts a change in the body, helping to maintain homeostasis by stopping an action.

Front

What amino acid is represented by the codon CAG?

Back

The amino acid represented by the codon CAG is Glutamine.

Front

What is the complementary mRNA sequence to the DNA strand AACTGAA?

Back

The complementary mRNA sequence is UUGACUU.

Front

What are the results of mitosis?

Back

In mitosis, the two resulting cells are identical to the starting cell and identical to each other.

Front

Define allele.

Back

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

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

Explain the difference between mitosis and meiosis.

Back

Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse gametes.

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite external changes.

Front

Define codon.

Back

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