Unit 2 DNA Quiz Practice

Genotype Tt is ______.

• tall

• short

• heterozygous

• homozygous

DNA is made of subunits called _________.

• proteins

• deoxyribonucleic acids

• traits

• nucleotides

Who discovered that the amount of adenine in DNA always equals the amount of thymine?

• Rosalind Franklin

• James Watson

• Erwin Chargaff

• Francis Crick

What did Watson and Crick’s model of DNA look like?

• a ball

• a straight line

• links in a chain

• a long, twisted ladder

Some genetic disorders, such as sickle cell disease, are due to _____________.

• a ribosome

• a mutation

• a DNA fingerprint

• genetic engineering

Tags

NGSS.HS-LS3-2

What are the three types of mutations?

• Sugar, phosphate and nitrogenous base

• insertion, deletion, substitution

• mitosis, meiosis and DNA

• sugar, phosphate, chromosomes

Tags

NGSS.HS-LS3-2

The scientists who first made images of DNA using x-rays are _______.

• Erwin Chargaff

• Rosalind Franklin and Maurice Wilkins

• James Watson and Francis Crick

• Alfred Hershey and Martha Chase

An organism’s inherited alleles together form its ______________________.

• guanine

• genotype

• genetic engineering

• thymine

___________ is the base complementary to adenine.

• guanine

• genotype

• genetic engineering

• thymine

___________ is the base complementary to cytosine.

• guanine

• genotype

• genetic engineering

• thymine