Mitosis Mystery
The reason why cells go through mitosis.
To make more cells for growth and to repair damaged tissue.
In fish, black scales (B) are dominant to purple scales (b).
If two heterozygous black fish are crossed, what percent of their offspring will be black?
75% will be black
(25% BB and 50% Bb)
Covers up recessive allele
dominant allele
If having a hitchhikers thumb is recessive (h), what is the genotype of someone with a hitchhiker's thumb?
hh
The town where Mrs. Smith grew up.
Spirit Lake
This is the name for the last phase of mitosis.
Telophase and cytokinesis.
Fur color in dogs shows incomplete dominance, with heterozygous dogs (Bb) being grey.
If two grey dogs are crossed, what percent of offspring will be black?
25% will be black
(50% will be grey and 25% will be white)
The physical appearance of on organism
Phenotype
An orange parrot has one red parent and one yellow parent
What type of inheritance does feather color likely follow?
Incomplete dominance
a three base mRNA sequence that codes for ONE amino acid, found on the mRNA
codon
The phase a cell is in if it is not dividing (not going through mitosis)
Interphase (G1, S, or G2)
In radishes, red (R) and white (r) are pure-breeding colors, while hybrids are purplish-pink (Rr).
If a purple-pink radish is crossed with a white radish, what will be the phenotype ratio of the offspring?
1 purple/pink: 1 white
(this is incomplete dominance)
heterozygous condition where both alleles are equally expressed (no blending)
codominance
The name of the guy who is known as the "Father of Genetics"
Gregor Mendel
The third president of the United States
Thomas Jefferson
The part of interphase when a cell makes a copy of its DNA.
S phase
No! - all kids would be ww (homozygous recessive)
crossing for one trait
monohybrid
What are the possible allele combinations in the gametes of an individual with the genotype: BbYY
(hint: foil it)
BY and bY
protein that links cytoskeleton to extracellular matrix
dystrophin
These get split up during anaphase.
Sister chromatids
A blue fish and a gold fish had offspring that were all patchwork (some gold scales and some blue scales).
A gold and blue patchwork fish mates with a fully gold fish. What is the phenotypic ratio of their offspring?
1 patchwork:1 fully gold
(no fully blue offspring)
Having the same two alleles for one gene
homozygous
If blue flower color (B) is dominant to white (b), how could you figure out the genotypes of two blue flowers?
cross them - if there are any white offspring, they must both have the genotype Bb
The reason why corals become white when bleached.
They eject their algae from the polyps