Punnett Squares
Pedigrees
Mitosis
Meiosis
Random!
100
Green is dominant to yellow in peas.
A true-breeding green pea is crossed to a yellow pea, resulting in green peas in the F1 generation.
If you cross two of the F1 peas, what phenotypic ratio is expected in the offspring?
3:1
100
What is the pattern of inheritance and why?
sex linked recessive
100
Describe the cell cycle (G1, S, G2, M, C).
xxx
100
Name (not describe) the phases of meiosis.
IPMATMAT
100
An enzyme that synthesizes DNA.
polymerase
200
In humans, hair type shows incomplete dominance (curly + straight = wavy).
If two people who have wavy hair have children, what proportion would you expect to also have wavy hair?
50%
200
An affected male from the pedigree below has children with a woman who is a carrier. They have a son. What is the chance that the son will develop the trait?
50%
200
What are protooncogenes and tumor suppressor genes?
xxx
200
An organism has 102 chromosomes in its skin cells.
How many would be in its muscle cells? Its sperm cells?
102, 51
200
Compare heterochromatin to euchromatin.
tight vs. loose
300
Manx cats can be tailless (T) or have a tail (t). Being homozygous dominant for the tailless allele is lethal. What is the probability that two Manx (tailless) cats will have offspring which are also tailless?
2/3
300
In the pedigree below, person II5 and II6 have another child. What is the chance this child will have the trait?
50%
300
Explain how the cell cycle is regulated, naming specific molecules which are involved.
xxx
300
A diploid organism has 6 chromosomes. Draw what a precursor sex cell would look like in this organism at a) metaphase 1, b) metaphase 2 and c) cytokinesis 2 of meiosis.
xxx
300
Explain the function of histone proteins.
400
A mouse is heterozygous for a paternally imprinted gene which causes dwarfism. When mated with a homozygous normal mouse, some offspring are also dwarf.
What is the gender of this mouse? How do you know?
male
400
Describe the inheritance pattern of an mtDNA trait on a pedigree.
xxx
400
A diploid organism has 3 chromosomes. Draw what a somatic cell of this organism would look like after synthesis of interphase; label homologous chromosomes and sister chromatids.
xxx
400
Describe three ways meiosis can increase genetic variation.
xxx
400
Compare and contrast mitosis and meiosis (at least 2 similar and 2 different)
500
A woman with hemophilia (sex-linked recessive) is blood type AB. A normal man is blood type O.
What is the chance that their first child will have blood type A and also be a hemophiliac?
12.5%
500
The following shows an imprinted disease. Explain a) what imprinting is and b) whether this disease maternally or paternally imprinted.
maternal
500
Describe 3 ways the cell cycle of cancer cells is regulated differently than that of normal cells.
xxx
500
An organism has two different chromosomes with two different genes on them - gene A and gene B. The organism is heterozygous for each of these genes. Draw all of the different gametes this organism could make.
AB, Ab, aB, ab
500
Compare and contrast prokaryotic and eukaryotic protein synthesis (2 similar 2 different)
xxx