Vocabulary
Punnett Squares
Genetics Pedigrees
Genetic Variations
Miscellaneous
100
Having a rolled tongue or a not rolled tongue are different versions of...
ALLELES
100
What is the chance that 2 brown-eyed parents (one is homozygous dominant and the other is heterozygous) produce brown-eyed children?
100%
100
It is a recessive trait
100
Write a homozygous dominant genotype for Black Fur
BB
100
This is an example of...
Codominance
200
Having a GG genotype means you are...
Homozygous dominant
200
What is the chance that 2 brown-eyed parents (both heterozygous) produce brown-eyed children?
75%
200
How do you know the trait is recessive?
The grandson in the 3rd generation received an allele from both parents who don't have the trait, so the parents passed on the recessive allele.
200
What could be the result if the DNA isn't copied correctly?
Mutations
200
The red and white alleles are...
Incomplete Dominance
300
If you have a recessive trait for eye colour, you _____ is blue.
Phenotype
300
A homozygous dominant flower and homozygous recessive flower are crossed, and their offspring are crossed again. What percentage of dominant, recessive and hybrid offspring will be produced?
25% Dominant trait
25% recessive trait
50% hybrid or heterozygous
300
What is the genotype of the children of the 1st set of parents in generation I?
heterozygous
300
A goldfish has 96 chromosomes in its skin cells. How many are in its gamete cells?
48
300
The affected trait can not be dominant because...
The parents do not have the trait, but the child does. One parent must have the trait if it is dominant in order to pass down the allele.
400
A heterozygous genotype will always be this... on a genetic pedigree
Carrier
400
If a homozygous dominant parent and a heterozygous parent have children, their offspring have this % chance of being homozygous recessive.
0%
400
Is the trait more likely dominant or recessive and how do you know?
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Dominant because:
- all generations have the trait
- 100% of the children of parents II3 and II4 have the trait
400
****** Daily Double ******
Explain the difference between incomplete and co-dominance
Incomplete is a blending of the traits
Co-dominance both traits appear
400
What is the genotype of the father in Generation I?
XAY
500
If you cross white and black rats and get grey offspring, the alleles are...
Incomplete dominant
500
A red flower with the genotype RR is crossed with a white flower with the genotype WR. The chance that the offspring will be pink or red/white is...
0%
(White the dominant allele in this example.)
500
What is the genotype of person 14?
XAXA
500
3 ways genetic variation occurs
Meiosis, mutations and environmental factors
500
If a base pair is accidentally eliminated, this is an example of ...
deletion mutation