Genetics 2.2 (Morgan 2024)

Front

What is the basic structure of a gene?

Back

A gene is composed of DNA, which consists of sequences of nucleotides that encode instructions for building proteins.

Front

How do proteins determine traits such as hair color?

Back

Proteins determine traits by influencing the biochemical processes that lead to the expression of specific characteristics, such as hair color.

Front

What is the role of alleles in genetics?

Back

Alleles are different versions of a gene that can produce variations in a trait.

Front

What is the significance of the protein structure in determining eye color?

Back

The structure of proteins, which is determined by the sequence of amino acids, influences the biochemical pathways that result in the production of pigments affecting eye color.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic constitution of an organism, while phenotype refers to the observable traits resulting from the genotype.

Front

What is the function of messenger RNA (mRNA) in protein synthesis?

Back

mRNA serves as a template for translating genetic information from DNA into proteins.

Front

What is the process of transcription in genetics?

Back

Transcription is the process by which the information in a gene's DNA is copied into messenger RNA.

Front

What is the role of ribosomes in protein synthesis?

Back

Ribosomes are the cellular structures where proteins are synthesized by translating mRNA into amino acid sequences.

Front

What are the four bases of DNA?

Back

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