Genetics Pretest

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

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

• AA
• Aa
• aa
• AaA

Tags

NGSS.HS-LS3-2

A method of calculating the chances of inheriting a specific trait is...

• Punnet Square
• Heritability Factor
• Quantitative
• Commercial 

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What is the genotypic ratio here

• TT = 25% Tt= 50% tt=25%
• all tall
• TT= 75% tt = 25%
• Tt = 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Sully monsters can be born with or without spots.  Having spots is dominant. (T-spots, t-no spots) You see a spotted sully monster running through the woods. His genotype is:

• TT
• tt
• Tt
• unknown

Tags

NGSS.HS-LS3-1

If a person has two of the same alleles for a given trait, that person is said to be __________ for that trait. 

• heterozygous 
• homozygous

Tags

NGSS.HS-LS3-1

Factors that control traits are called

• genes

• purbreds

• recessives

• parents

Tags

NGSS.HS-LS3-1

Scientists call an organism that has two different alleles for a trait a

• hybrid

• trait

• purbred

• factor

Tags

NGSS.HS-LS3-1