Unit 4 Test Corrections 2024

Front

What is transcription in the context of genetics?

Back

Transcription is the process by which the information in a DNA strand is copied into a complementary RNA strand.

Front

What type of bonds hold the two strands of DNA together?

Back

Hydrogen bonds hold the two strands of DNA together.

Front

What part of a nucleotide is responsible for genetic variation?

Back

The nitrogenous base is responsible for genetic variation between individuals.

Front

How do you transcribe the DNA strand CTG AAT?

Back

The transcribed RNA strand is GAC UUA.

Front

What is an anti-codon?

Back

An anti-codon is a sequence of three nucleotides in tRNA that is complementary to a codon in mRNA.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Front

What is the role of RNA polymerase in transcription?

Back

RNA polymerase is the enzyme that synthesizes RNA from the DNA template during transcription.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.

Front

What is a codon?

Back

A codon is a sequence of three nucleotides in mRNA that codes for a specific amino acid.

Front

What is the significance of the nitrogenous base in a nucleotide?

Back

The nitrogenous base determines the genetic code and the specific traits of an organism.