RETEST Genetics and Mutations

Front

Where does transcription take place?

Back

Transcription takes place in the nucleus of the cell.

Front

What brings the amino acids to the ribosome to assemble a protein?

Back

tRNA (transfer RNA) brings amino acids to the ribosome.

Front

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

Back

The complementary mRNA sequence is UUGACUU.

Front

What type of mutation is shown in the image?

Back

Gene Translocation is a type of mutation where a segment of DNA is moved from one location to another.

Front

What is it called when one nucleotide is replaced with a different nucleotide?

Back

This is called a substitution mutation (point mutation).

Front

Define mutation.

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA (messenger RNA) carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

Explain the process of transcription.

Back

Transcription is the process where the DNA sequence of a gene is copied into mRNA.

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, altering the reading frame.

Front

What is nondisjunction?

Back

Nondisjunction is the failure of chromosomes to separate properly during cell division, leading to an abnormal number of chromosomes.