UNIT_3_DNA_to_RNA_Review_Phase 1

Front

What is a segment of DNA called?

Back

A segment of DNA is called a gene.

Front

Which sequence of DNA bases would pair with this partial strand ATG TGA CAG?

Back

The sequence that would pair is TAC ACT GTC.

Front

What genetic disorder is caused by an extra copy of chromosome #21?

Back

Down Syndrome is caused by an extra copy of chromosome #21.

Front

A mutation can occur if a base pair is ____________, deleted or substituted for another.

Back

A mutation can occur if a base pair is added.

Front

The two strands of nitrogenous bases in DNA are joined by which type of bond?

Back

The two strands are joined by hydrogen bonds.

Front

What are the four nitrogenous bases found in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

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

What is transcription in the context of DNA and RNA?

Back

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

Front

What is the complementary base pairing rule in DNA?

Back

A pairs with T, and C pairs with G.

Front

What is a chromosome?

Back

A chromosome is a long, continuous thread of DNA that contains many genes.