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Biology - Mendelian Genetics
Mendelian Genetics
35
Biology
9th Grade
01/14/2016

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Term
What is the study of heredity
Definition
genetics
Term
What is heredity?
Definition
passing traits from parents to offspring
Term
What is phenotype?
Definition
the physical appearance of a trait
Term
What is an allele?
Definition
different forms of a gene
Term
What is the name given to the device used to solve genetic problems
Definition
Punnett square
Term
Which allele masks the other?
Definition
dominant
Term
Name the allele represented by a lowercase letter.
Definition
recessive
Term
What is heterozygous?
Definition
different alleles for a trait
Term
What is homozygous?
Definition
2 identical alleles for a trait (2 alleles that are the same)
Term
Who is known as the "Father of Genetics"
Definition
Gregor Mendel
Term
What did Mendel call the offspring of the P generation?
Definition
F1
Term
How many phenotypes result from codominant alleles?
Definition
3 phenotypes
Term
What percentages were the dominant and recessive phenotypes found in the F2 generation?
Definition
25% recessive and 75% dominant
Term
Which trait disappeared in the F1 generation and reappeared in the F2 generation?
Definition
recessive trait
Term
What is a cross of an unknown of a dominant phenotype with a homozygous recessive?
Definition
test cross
Term
What do you know about the genotype of a dominant phenotype if the offspring of a test cross are half dominant and half recessive phenotype?
Definition
heterozygous parent
Term
If a heterozygous parent and heterozygous parent are crossed, what is the phenotypic ratio of the offspring?
Definition
3:1
Term
If a heterozygous parent and heterozygous parent are crossed, what is the genotypic ratio of the offspring?
Definition
1:2:1
Term
If a heterozygous parent and heterozygous parent are crossed, what are the parents phenotypes?
Definition
dominant
Term
If a heterozygous parent and a homozygous recessive parent are crossed, what is the phenotypic ratio of the offspring?
Definition
1:1
Term
If a heterozygous parent and a homozygous recessive parent are crossed, what is the genotypic ratio of the offspring?
Definition
1:1
Term
If a heterozygous parent and a homozygous recessive parent are crossed, how many phenotypes are in the offspring?
Definition
2 phenotypes
Term
If a homozygous dominant parent and a heterozygous parent are crossed, what is the phenotypic ratio of the offspring?
Definition
4:0
Term
If a homozygous dominant parent and a heterozygous parent are crossed, what is the genotypic ratio of the offspring?
Definition
1:1
Term
If a homozygous dominant parent and a homozygous recessive parent are crossed, what is the phenotypic ratio of the offspring?
Definition
4:0
Term
What is the ratio for axial flowers to terminal flowers if there are 858 total plants, 651 of them had axial flowers and 207 had terminal flowers?
Definition
3.14:1
Term
What is the ratio for tall plants to short plants if there are 1064 total plants, 787 of them were tall and 277 were short?
Definition
2.84:1
Term
How many phenotypes result from codominant alleles?
Definition
3
Term
What type of trait shows red fur, white fur, and roan fur in cattle?
Definition
codominance
Term
What color are offspring from a cross of red and white snapdragons (incomplete dominance)?
Definition
pink
Term
What blood types (phenotypes) are found in offspring of a cross between a person with AB (IAIB) blood type and O (ii)blood type
Definition
A and B
Term
What blood types (phenotypes) are found in a cross between a person with type A blood (IAi) and type B blood (IBi)?
Definition
A (IAi), B (IBi), AB (IAIB), O (ii)
Term
What is genotype?
Definition
The alleles for a trait
Term
What is the law of segregation?
Definition
alleles separate when gametes are formed
Term
What law states that different genes are not linked during gamete formation?
Definition
Law of independent assortment
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