Biology EOC Review Genetics

What is the definition of Homozygous?

• When one allele is dominant and one is recessive
• When an individual has two sets of the same allele.
• when it is neither dominant or recessive

what is the definition of Heterozygous? 

• when an individual has two sets of the same allele
• when it is neither dominant or recessive
• A pair of genes where one is dominant and one is recessive.

The genotype is the ______________.

• physical appearance
• Genetic makeup
• Alleles gained from one parent

The Law of Segregation is when two alleles for a heritable character segregate (separate) during gamete formation and end up on the 

• same gametes
• different gametes

Tags

NGSS.HS-LS3-2

What is a punnett square?

• graph used to predict the possible genotypes of offspring in a given cross
• a graph used to predict the possible birth rate of offspring.
• a graph used to predict the possible behavioral characteristics an offspring could have
• None of the above

Tags

NGSS.HS-LS3-3

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

Tags

NGSS.HS-LS3-1

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

An offspring will receive how many alleles from each parent to determine a specific trait?

• one
• two
• three
• five

Tags

NGSS.HS-LS3-1

Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?

• 0 %
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What percentage of the offspring will have this recessive disease?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3