Chapter 5 Genetics

Why are there a variety of phenotypes for skin color in humans?

• the trait is controlled by many phenotypes

• the trait is controlled by many genes

• multiple skin color alleles come from each parent

• the trait is controlled by one allele

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A ___________________ is part of the DNA code on a chromosome.

• gene

• phenotype

• genotype

• gender

1. Which of the following is NOT part of a chromosome?

• proteins

• deoxyribonucleic acid

• cell

• DNA

Which of the following did NOT investigate genetics through studying the structure of DNA?

• Gregor Mendel

• James Watson

• Rosalind Franklin

• Francis Crick

1. Which of the following is NOT one of the nitrogen bases that form the rungs of the ladder in DNA?

• adenine

• francine

• cytosine

• guanine

Proteins are made with the help of _____.

• DNA

• PNA

• RNA

• MNA

Which of the following is NOT a type of RNA?

• messenger RNA

• ribosomal RNA

• transfer RNA

• translational RNA

Which of the following is NOT an external cause of mutation?

• exposure to X-rays

• exposure to neon light

• exposure to ultraviolet light

• exposure to radioactive materials

Mutations cause changes in _____.

• protons

• electrons

• proteins

• neutrons

The sides of the helix labeled as A are made of _______________________ groups.

• sugar-phosphate

• nitrogen

• nucleotide

• protein

Tags

NGSS.HS-LS1-1