What phenotype in offspring does a homozygous dominant black rabbit create with a homozygous recessive rabbit?
All black
100
What is the genotype of a homozygous dominant blue bird?
BB
100
Two dogs are brown. One is homozygous while the other is heterozygous. What do these dogs share, genotype or phenotype?
phenotype
100
What is a gamete?
a sex cell either egg or sperm
200
What is a phenotype?
physical characteristics
200
What genotype in offspring does a homozygous dominant black rabbit create with a homozygous recessive rabbit?
All heterozygotes
200
a male bird who is (dominant) blue mates with a green bird what genotype would all their offspring be?
heterozygous
200
If the offspring of two plants are AA, AA,Aa and Aa that means that the parents genotypes must have been what?
AA and Aa
200
How many chromosomes does a human have?
46
300
What is an allele?
A "letter" or half of a trait given by your mother and father.
300
In mussels the allele for brown coloring B is dominant and the allele for blue coloring b is recessive. For which parental genotypes are 100% of the offspring expected to be blue?
bbxbb
both homozygous recessive
300
How would a recessive gene appear in the phenotype?
a recessive gene would only appear in rhe phenotype if two recessive alleles are present
300
Both male and female offspring can have roan coats in cattle, which are a mixture of red hairs and white hairs, this means that the trait for coat color in cattle is_________________
codominant
300
How many chromosomes are donated by each parent to the offspring?
23 from mother
23 from father
400
What is a trait?
A physical characteristic in a phenotype
400
The allele for the absence of horns in cattle is dominant (A) to the allele for presence of horns (a). A male with horns is mated with a heterozygous female without horns. What percentage of the offspring would be expected to have horns?
50%
400
Describe what codominance is. What would a codominant heterozygote look like?
more than one allele is dominant. the heterozygote will have both phenotypes present.
400
If a pure dominant plant with round seeds is crossed with a plant with wrinkled seeds, what can be predicted about the offspring's plants
What is They will all produce round seeds.
400
What do chromosomes contain?
DNA that determines genes
500
What is Genetics?
the study of hereditary
500
In pigeons the allele for normal feathers (F) is dominant to the allele for frizzy feathers (f). If a purebred normal feathered bird is crossed with a frizzy feathered bird, how many different feather phenotype are possible in the offspring?
1
500
Describe incomplete dominance. What would an incomplete dominant heterozygote look like?
inbetween both alleles
500
According to Mendels law of independent assortment ( one allele of each trait gets donated by each parent) what are the different combinations a parent can donate with the genotype TtGg?
TG, Tg, tG, tg
500
How does DNA determine genes? (use central dogma)
Your DNA codes for your RNA and your RNA makes proteins which make up traits.