Basic Punnett Squares Question Preview (ID: 49633)


Do One Factor Crosses Using Dominant And Recessive Traits. TEACHERS: click here for quick copy question ID numbers.

Which of the following would be a GOOD symbol for a recessive allele?
a) D
b) o
c) e
d) G

Which of the following would be a GOOD symbol for a dominant allele?
a) q
b) S
c) h
d) N

How many genes do you have for one particular trait/protein?
a) 1
b) 2
c) 4
d) many

Why do you have two genes for each trait/protein?
a) Because you will have a backup if one fails
b) Because body parts often come in pairs ex. eyes, ears
c) Because you have a male and a female parent
d) Because DNA is double-stranded

What is/are the word(s) that describe this symbol: HH?
a) heterozygous dominant
b) heterozygous
c) homozygous dominant
d) homozygous recessive

What is/are the word(s) that describe the symbol: Hh?
a) heterozygous recessive
b) heterozygous
c) homozygous dominant
d) homozygous recessive

What is/are the word(s) that describe the symbol: hh
a) heterozygous dominant
b) heterozygous
c) homozygous dominant
d) homozygous recessive

Homozygous dominant crossed with homozygous dominat. What is the genotypic ratio in their offspring?
a) 1:1
b) 1:0
c) 1:2:1
d) 3:1

Heterozygous crossed with heterozygous. What is the phenotypic ratios in their offspring?
a) 1:1
b) 1:0
c) 1:2:1
d) 3:1

What do the letters on the outside of the Punnet square represent
a) Genotypes of the parents
b) Genotypes of the offspring
c) Gametes from the parents
d) Genes that are common in the population

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