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WorksheetsMeiosis and Genetics Summative
Total questions: 19
Worksheet time: 11mins
Your friend has attached earlobes like his maternal grandfather. His mother and father both have free earlobes, which are dominant. Which statement best explains how your friend inherited attached earlobes?
He received a recessive allele from each parent
He received a dominant allele from each parent
He received a recessive allele from his mother and a dominant allele from his father
He received a dominant allele from his mother and a recessive allele from his father
ABO Blood types are an example
incomplete dominance
polygenic inheritance
codominance
completely dominant
multiple alleles
If a homozygous red flower and a homozygous white flower end up with 100% pink offspring, what type of inheritance pattern would this be?
incomplete dominance
multiple alleles
complete dominance
codominance
In ABO blood typing, type O blood is recessive to A and B alleles, while A and B alleles are codominant to each other. Would it be possible for a child to be born with type O blood if their parents are both type A?
No, two type A parents can only produce A offspring
Yes, if both parents were heterozygous.
No, because there are no carriers for the O blood type.
Yes if both parents were homozygous
Colorblindness is caused by an X-linked recessive allele. Which of the following is true?
A colorblind male only receives the colorblind allele from his mother; the father does not matter
A colorblind male only receives the colorblind allele from his father; the mother does not matter
A colorblind female only receives the colorblind allele from her father; the mother does not matter
A colorblind female only receives the colorblind allele from her mother; the father does not matter
At a particular phase in the cell cycle, chromosomes have aligned near the middle of a cell. Which sequence of events will the cell need to complete to produce TWO IDENTICAL daughter cells?
metaphase II > anaphase II > telophase II
anaphase II > telophase II > cytokinesis
anaphase > telophase > cytokinesis
prophase > cytokinesis > anaphase
Two pea plants have the genotypes TT and Tt where T is completely dominant to t. Which of the following statements is true?
have the same phenotype.
have all recessive alleles.
have all dominant alleles
have different phenotypes
In a certain species of flower, purple is completely dominant to white flower color. If you cross a white flower and a homozygous purple flower, what fraction of the offspring will be heterozygous purple flowers?
1/4
3/4
2/4
4/4
13. In seals, the gene for the length of the whiskers has two alleles. The dominant allele (W) codes long whiskers and the recessive allele (w) codes for short whiskers. If you breed two long-whiskered seals, one that is homozygous dominant and one that is heterozygous, what is the ratio of homozygous offspring to heterozygous offspring?
2:2
1:3
0%
1:4
Colorblindiness is a gene carried on the X chromosome. If a female has colorblindness, and had offspring with a colorblind male, what percentage of their sons will be colorblind?
75%
50%
100%
0%
In a species of chicken, feather color is codominant. Black chickens crossed with white chickens results in speckled black and white chicken. You cross a heterozygous chicken with a white chicken. What is the
phenotype percentage of pure black offspring?
75%
0%
25%
100%
Which type of cell division results in 2 identical daughter cells?
(a)
Which type of cell division results in 4 daughter cells?
(a)
What is it called when homologous chromosomes exchange genetic material during prophase I?
(a)
Which of Mendel's principles states that inheritance of one allele does not affect inheritance of another allele?
codominance
independent assortment
multiple alleles
segregation
Term for a variation of a gene that may occur on a chromosome
independent assortment
allele
elongation factor
genotype
Which allele is expressed when two different genes are present?
dominant
recessive
An individual's genetic makeup (alleles) for a specific set of genes
genotype
sister chromatid
dominant
phenotype
Term for an individual that has two different forms of an allele
X-linked
heterozygous
homozygous dominant
homozygous recessive
