Mechanisms of Genetics Test Review

Front

What is an inversion in genetics?

Back

An inversion is a situation where part of a chromosome is flipped 180 degrees.

Front

At which stage in the lives of identical twins is the DNA code expected to be most similar?

Back

The DNA code doesn't generally change, so it is the same at all ages.

Front

How can muscle cells and nerve cells have the same DNA sequences but perform differently?

Back

The proteins expressed in each cell are different.

Front

What is a mutation?

Back

A mutation is any change in the sequence of DNA.

Front

What is a gene?

Back

A gene is a segment of DNA that encodes for a protein.

Front

What is the role of proteins in cell differentiation?

Back

Proteins determine the structure and function of cells, leading to differentiation.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and stores genetic information, while RNA is single-stranded and helps in protein synthesis.

Front

What is a chromosome?

Back

A chromosome is a long DNA molecule that contains many genes.

Front

What is the function of ribosomes in protein synthesis?

Back

Ribosomes are the sites where proteins are synthesized from amino acids.

Front

What is the central dogma of molecular biology?

Back

The central dogma states that DNA is transcribed to RNA, which is then translated to protein.