Unit 6 Grudge Ball Game

Question How are alleles represented on a Punnett Square?

Answer By Capitol and lowercase letters

Bb (must be said as heterozygous) or bb (must be said as homozygous recessive)

Question How do you correctly say this Genotype? AA

Answer Homozygous Dominant

Question What is the definition of Recessive Trait?

Answer A recessive trait is one that can only be expressed when 1 recessive allele is paired with another recessive allele .

Question What do squares represent on a pedigree?

Answer Males

Question How do you correctly say this Genotype? Bb

Answer Heterozygous

Question Determine the genotype of the individual below. Person 1 is homozygous dominant for green eyes. Use the letter “a”

Answer AA

Question What do circles represent on a pedigree?

Answer Females

Question How do you correctly say this genotype? gg

Answer Homozygous Recessive

Question Determine the genotype of the individual below. Person 2 has heterozygous green eyes. Use the letter “a”

Answer Aa

Question: In cats, yellow fur is dominant over white fur Question: In cats, yellow fur is dominant over white fur. A heterozygous cat is mated with a white cat. The possible genotypes of that offspring are:

Answer: Yy or yy

Question Define what a genotype is.

Answer A genotype is the description of the combination of alleles for a specific trait.

Question What do shaded in shapes on a pedigree mean?

Answer The shaded in shapes represent where the trait is expressed in that family or who is “affected” by the trait.

Question Using the pedigree below, tell me the genotype of person II-6. The shaded in genotype is recessive.

Answer Aa

Question Define the term phenotype.

Answer An organism’s physical traits. Its appearance.

Question Is it possible for person 8 or 9 to be homozygous? Explain. ***Remember the trait is recessive.

Answer No, because 2 of their children have the trait and that means they must each carry one recessive gene.

Question Explain the law of dominance.

Answer Whenever there is a dominant allele in a genotype, the phenotype will always be dominant over an recessive alleles.

Question: A heterozygous tall pea plant is crossed with a short plant Question: A heterozygous tall pea plant is crossed with a short plant. Tall (T) is dominant to short (t) plants. The probability that the offspring will be tall is what %?

Answer: 50%

Question Determine the genotype of the individual below. Widow’s peak is a recessive trait. Use the letter E

Answer ee

Question List the numbers below that are siblings.

Answer 5, 6, 7, 8 9,10,11 12, 13, 14

Question What do the roman numerals represent in a pedigree?

Answer Generations

Question: Brown (B) is dominant over white (b) in foxes Question: Brown (B) is dominant over white (b) in foxes. A homozygous brown fox is crossed with a white fox. The probability that the fox offspring will be white?

Answer: 0%

Question What is the relationship between 2 to 12, 13, & 14?

Answer 2 is 12, 13, & 14’s grandmother.

Question How do you write the genotype for someone whose first allele is dominant, but the second allele is unknown? Use the letter “A”.

Answer A-