Genetics A Assessment

Alleles are always found in pairs

• True
• False

What is a phenotype

• 2 alleles
• Genetic code represented by letter
• Measurement of productivity due to genetics
• Observable physical characterisitcs

Tags

NGSS.MS-LS4-4

Which of the following is an example of a heterozygous genotype?

• AA
• Aa
• aa
• AaA

Factors that control traits are called

• genes

• purbreds

• recessives

• parents

Tags

NGSS.HS-LS3-1

What does the notation TT mean to geneticists?

• two dominant alleles

• two recessive alleles

• at least one dominant alleles

• one dominant and one recessive

What does the notation Tt mean to geneticists?

• two dominant alleles

• two recessive alleles

• at least one recessive allele

• one dominant allele and one recessive allele

What is probability?

• the actual results from a series of events

• the likelihood that a particular event will occur

• the way the results of one event affect the next event

• the number of times a coin lands heads up

Tags

NGSS.HS-LS3-3

What does a Punnett square show?

• all the possible outcomes of a genetic cross

• only the dominant alleles in a genetic cross

• only the recessive alleles in a genetic cross

• all of Mendel's discoveries about genetic crosses

If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.MS-LS3-2

Hair color, height, eye color and freckles are examples of human traits. What do we call the physical expression of the genetic material of an organism?

• genetics

• heredity

• genotype

• phenotype

Tags

NGSS.HS-LS1-1