WorksheetsUnit 3 Test Review - Genetics 2023
Total questions: 11
Worksheet time: 12mins
A horticulturalist wants to produce geraniums with specific characteristics. She knows that the trait of red flowers is governed by the allele R (RR and Rr) and the trait of white flowers is governed by the allele r (rr).
The horticulturalist plans to cross a geranium that is homozygous for red flowers with a geranium that is homozygous for white flowers.
Two mice with a Mendelian trait for black fur are bred and have the litter shown. What is the most likely explanation for the presence of the white-fur offspring?
One of the parents is heterozygous.
Both of the parents are heterozygous.
A mutation occurred.
The parents' fur color has no influence on the offspring fur color.
A pair of mice are bred several times, generating the following data for the Mendelian trait of fur color. What are the most likely genotypes of the parents?
FF and ff
FF and Ff
Ff and Ff
Ff and ff
Two chickens with a codominant trait for feathers are bred and have five offspring, shown below. What are the most likely genotypes of the parents?
RW and WR
WR and WW
RR and RW
RR and WW
What relationship does the diagram show between the two alleles?
Complete Dominance
Incomplete Dominance
Codominance
Mendelian Genetics
If you were to take one of the heterozygous flowers above and breed it with a homozygous recessive flower above, what percentage of their offspring would be white?
0%
25%
50%
75%
What does the following diagram illustrate about the fur color of cows?
The white and brown alleles show incomplete dominance.
The brown and white alleles for fur color are codominant.
The brown allele for fur color is dominant.
The white allele for fur color is dominant.
The diagram below shows a happy family of mice, with two parents and four offspring. However, one of the offspring mice is an imposter. The black-fur parent has the genotype FF Ee, and the white-fur parent has the genotype ff Ee. Given these parent genotypes, which offspring mouse could not have been born to these parents?
Mouse A (Ff Ee)
Mouse B (Ff EE)
Mouse C (Ff ee)
Mouse D (ff EE)
Two parents are wanting to have a baby. Dad's blood type is I^Ai and mom's blood type is I^Bi. What are the possibilities of their future baby's blood type?
What are the most likely percentages for offspring of two chickens with BOTH red and white feather chicken parents? Hint: Complete a punnett square cross for 2 RW chickens.
Codominance, Incomplete dominance, and Complete Dominance are the three PATTERNS of inheritance we have learned in this unit. Type - patterns - into the text box. That is the password for your Unit 6 test. All lowercase. Good luck!
(a)
