Genetics Review

What term would describe the following genotypes: Hh or Rr Heterozygous

Which cell or cells are dipliod? C ABC

In mussels, the allele for brown coloring (B) is dominant to the allele for blue coloring (b). Give the parental genotypes that are necessary to get 50% of the offspring to be brown and 50% of the offspring to be blue. Bb X bb

Specifically, in which organs does meiosis occur? Ovaries and testes

Garden pea plants can have yellow seeds or green seeds. In a plant that is heterozygous for seed color, the allele for yellow seeds masks the allele for green seeds. What term BEST describes the yellow allele? Dominant

Which cell or cells are hapliod? A and B ABC

What term would describe the following genotypes: HH or hh Homozygous Dominant

A male chimpanzee has 48 chromosomes in its liver cell. How many chromosomes are in each of his sperm cells? 24

Both a mom and dad have blood type B, but they have a daughter with blood type O. What are the genotypes of both parents? Both parents have the I B i genotype

A partial Punnett Square is shown below. What are the genotypes of the parents? Gg X Gg

In certain dogs, black (B) fur is dominant over red (b) fur. If a heterozygous black dog and a red dog are mated, their offspring would be expected to have ___ genotypes and ___ phenotypes. 2 genotypes and 2 phenotypes

Give two words that describe the mutation: Normal DNA: TTC Altered DNA: TTG Base-pair substitution and Missense

In a genetics laboratory, two heterozygous tall plants are crossed. If tall is dominant over short, what are the expected phenotypic results? 75% tall, 25% short

The diagram below shows a disorder on chromosome 15. What type of chromosome mutation occurred? Inversion

What term would describe the following: HH, Hh, or hh Genotype

The diagram below indicates an event that occurs in Prophase 1. What is the name of this event? Crossing Over

What term would describe the following genotypes: hh or rr Homozygous Recessive

Mutations that occur in _____ cells are passed on to an organism’s offspring. Gametes (sperm / egg)

The table below shows the genotypes that result in four different blood types in humans. What term best describes alleles I A and I B ? Co-dominant

What is the gender of the individual indicated in the karyotype below? Male

In tomato plants, the allele for red fruit color (R) is dominant to the allele for yellow fruit color (r). The allele for round shaped fruit (F) is dominant to the allele for pear shaped fruit (f). Two plants that are heterozygous for both traits are cross pollinated. What are the genotypes of each plant? RrFf X RrFr

Give two words that describe the mutation: Normal DNA: GCC Altered DNA: TCC Base-pair substitution and Silent

People who are tune deaf are unable to follow a rhythm. Scientists have evidence that tune deafness is an inherited trait. According to the pedigree, what is the inheritance pattern of tune deafness? Autosomal dominant

The allele for tune deafness is dominant (T) and the allele for normal is recessive (t). What is the genotype of individual # 4? Tt

What is the probability that individuals # 3 and # 4 will have a child that has tune deafness? ¾ or 75%

The pedigree below shows the inheritance of Duchene's muscular dystrophy. According to the pedigree, what is the inheritance pattern of Duchene’s muscular dystrophy? Sex-linked

Several of the shaded boxes have a diagonal line drawn through them. What is the significance of the diagonal line? Indicates death of individual

Which of these changes to the DNA triplet 3‘ AGG 5’ will affect the protein produced? A.AGA B.AGC C.ATG D.AGT

What are the sex chromosomes of a normal male? XY

Mutation C is an example of a Insertion

Deletion The removal of one or more nucleotides from the original DNA sequence-

What are the sex chromosomes of a normal female? XX

In the karyotype below, which set of chromosomes displays nondisjunction? 21

The cells below are human cells. How many chromosomes are cell A? 23 ABC