Vocab 1
Vocab 2
Reproduction
Vocab 3
Vocab 4
Miscellaneous & Punnett Squares
100
What is a gene?
A section of DNA on a chromosome that controls one trait.
100
What is an allele?
the different forms of a gene.
100
Sexual reproduction produces offspring that are genetically _____________ to the parents
Similar
100
An organism's physical appearance is called this.
phenotype
100
A child of a person or animal
Offspring
100
How are traits passed from parent to offspring?
Through genes during reproduction
200
An individual who has two different alleles for a gene is
Hybrid
200
An individual who has two identical alleles for a gene is
Purebred
200
Asexual reproduction produces offspring that are genetically ____________ to the parent.
Identical
200
This is the term that refers to the physical characteristics that are studied in genetics.
trait
200
The study of how traits are passed from parent to offspring.
Genetics
200
How many parents are involved in asexual reproduction?
One
300
If an allele does not affect the phenotype of a hybrid individual, the allele is
recessive
300
What does it mean if an allele is dominant?
The allele that overshadows the recessive allele. It will always show up when it is present.
300
If you are studying a population of genetically identical individuals, you can conclude that these individuals reproduce how?
Asexually
300
An organism's genetic makeup is called this.
genotype
300
The passing of traits from parents to offspring.
Heredity
300
Why does a Punnet Square use capital and lowercase letters?
Capital = Dominant Trait Lower Case = Recessive Trait
400
A striped fruit fly is crossed with a non-striped fruit fly.
N = non-striped is dominant
n = striped is recessive
What is the genotype of the striped parent?
nn
400
The ‘B’ gene controls the color of a dog’s coat. The ‘R’ gene controls the texture.
Which alleles, B, b, R, and/or r, would occur in all the offspring of the following parents?
BbRR x bbRr
R and b
400
A man who is hybrid for the albino allele is married to a woman who is purebred for normal skin color. What percent of their children would you expect to be albino?
0%
400
Two different forms of a gene are called this.
Alleles
400
A threadlike structure carrying genetic material in the form of genes
Chromosomes
400
Long ears are dominant (E) in rabbits. If one parent is homozygous dominant for the long ear trait and the other reccessive (e), what is the only possible genotype of the offspring?
Ee
500
A striped fruit fly is crossed with a non-striped fly. All 100 offspring are non-striped.
N = non-striped is dominant
n = striped is recessive
What is the genotype of the non-striped parent?
NN
500
Rough
500
Two dark brown rabbits have four offspring. Three of the offspring are dark and one is white. What does this tell you about the parents' genes for fur color?
Dark brown is dominant and white fur is recessive. Both parents are hybrid.
500
This is the probability of producing a tall pea plant from a genetic cross between two hybrid tall pea plants
75% (or three in four)
500
Parents who are both hybrid for the alleles for albinism (Aa x Aa) have 2 hybrid children. Now, the mother is expecting fraternal twins. Is it possible for them to have a child with albinism? What percentage chance?
Yes, 25%
500
Two dark brown rabbits have four offspring. Three of the offspring are dark and one is white. What does this tell you about the parents' genes for fur color?
Dark brown is dominant and white fur is recessive. Both parents are heterozygous.