Vocabulary 1
Vocabulary 2
Punnet squares
Squares,Keys, and trees
Final Jeopardy
True and False
100
This is also known as the study of heredity.
Genetics
100
The passing on of traits from parents to offspring.
heredity
100
Many farmers prefer cattle without horns because it is safer for their herds. The allele for no horns (N) is dominant to the allele for the presence of horns (n).
A farmer mates a male with horns to a heterozygous female without horns.
What is the chance that the offspring will have horns?
1/2 or 2/4 or 50%
100
This grid is used to show all the possible combinations of genes in offspring
Punnett Square
100
Part 1: Who is considered the father of genetics?
Part 2:Use the image below to create a Punnett square for the crossing of two heterozygous parents. Give the PHENOTYPIC and GENOTYPIC ratios
Gregor Mendel
100
Someone who is heterozygous would have the genes BB.
False
Bb
200
In most cases, this vocabulary term has a dominant and recessive form.
Allele
200
The physical feature resulting from a combination of alleles.
Phenotype
200
In lizards, brown coloring (B) is dominant, and blue coloring (b) is recessive.
A homozygous brown mussel crosses with a blue mussel.
What percentage of offspring are expected to be blue?
0% or 0/4
200
Using the dichotomous key classify an organism that has the following:
small or no wings, shorter rear legs, not a horned head and small eyes.
200
Humans use selective breeding to increase improve plants and animals for farming.
True.
300
When two alleles that make up a genotype are different.
Heterozygous.
300
When two alleles that make up a genotype are identical.
Homozygous
300
In horses, the allele for straight hair (H) is dominant, and the allele for curly hair (h) is recessive.
A horse breeder mates a homozygous dominant mother with a heterozygous male.
What is the chance that the offspring will have straight hair?
4/4 or 100%
300
Unlike the lizard, the salamander lacks this feature or trait. Use the cladogram to answer
300
A recessive trait prevents another trait from being expressed.
False.
400
The gene combination for a trait.
Genotype.
400
When alleles are neither dominant or recessive so a mix of both traits is seen in the offspring. This is referred to as __________.
Codominance
400
In humans, right handedness, R, is dominant to left handedness, r. Two heterozygous parents are having their first child. What chance does that child have of being right handed?
3/4 or 75%
400
Make a proper key, tree, or cladogram for the creatures below.
400
Orange hair is an example of a recessive genotype.
False.
Recessive PHENOTYPE
500
Someone that does not show a disease, but can pass it to their offspring.
A Carrier.
500
A segment of DNA responsible for expressing a trait
A gene.
500
In humans, a widow's peak, T, is dominant over a straight hairline, t. A woman homozygous dominant marries a man with a straight hairline. What chance do their kids have of getting a widow's peak?
4/4 or 100%
500
Which of these trees depicts a different evolutionary history than the others?
500
According to the tree below, Species A and C are more closely related.
False. B and C are more closely related.