What is Heredity
Probability and Heredity
Punnett Squares
Vocabulary Terms
100
The scientific study of heredity.
What is genetics?
100
A chart that shows all the possible ways alleles can combine in a genetic cross.
What is a Punnett square?
100
Possible genotype(s) of smooth pods. (Smooth pods are dominant over pinched pods)
What are SS or Ss?
100
A number that describes how likely it is an event will occur.
What is probability?
200
Factors that control a trait.
What is a gene?
200
Probability of a six-sided dice landing on the number 5.
What is 1/6 or 16.67% (17%)?
200
If a purebred black guinea pig is crossed with a purebred white guinea pig, this will be the genotype of the offspring. (Black is dominant over white)
What is Bb?
200
An organism's genetic makeup.
What is the genotype?
300
Different forms of a gene.
What are alleles?
300
Physical appearance, or visible traits.
What is the phenotype?
300
If a hybrid black guinea pig is crossed with another hybrid black guinea pig, this is the probability that the offspring will be white. (Black is dominant over white)
What is 25%?
300
When this is present, the trait always shows up in the organism.
What is the dominant allele?
400
Proportion of the plants in the F2 generation that had a trait which had been absent in the F1 generation.
What is one-fourth or 25%?
400
Probability of producing a tall pea plant from a genetic cross between two hybrid pea plants.
What is 75% or three in four.
400
The possible genotype(s) of the offspring when two heterozygous tall pea plants are crossed. (Tall stems are dominant over short stems)
What are TT, Tt, and tt?
400
Organism with two different alleles for a trait.
What is a hybrid?
500
Letter used to show yellow seed color if green seed color is dominant over yellow.
What is a lower case g?
500
Probability of getting purple flowers when a purebred white flower is crossed with a purebred purple flower. (White is dominant over purple)
What is 0%?
500
% of recessive trait that shows up in the F2.
What is 25%?
500
Latin word from which we get the letters F1 and F2.
What is filial (filia/filius)?
M
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