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?

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?

In mussels, 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?

In tomatoes, tall vines (T) are dominant to dwarf vines (t), and red fruit (R) is dominant to yellow fruit (r). A farmer mates a homozygous tall, red tomato plant (TTRR) with a heterozygous tall, red tomato plant (TtRr).

What is the fraction of offspring that will be dwarf plants with yellow fruit?

In guinea pigs, black hair (B) is dominant to brown hair (b) and short hair (H) is dominant to long hair (h). A black, long-haired guinea pig (Bbhh) is crossed with a brown, short-haired guinea pig (bbHh).

What percentage of the offspring will be black with long hair?

Where are "Genes" found?

How many chromosomes do humans have?

The above karyotype is:

a photograph or picture of chromosomes grouped in ordered pairs is a ______________

Who is known as the "father of genetics"?

Alleles (example: H or h) are alternative forms of a gene. How many alleles does a baby guinea pig inherit from their mother?

A HETEROZYGOUS individual would have the genotype:

In pea plants, tall (T) plant alleles are dominant to short (t) plant alleles. If two tall plants (each with the genotype Tt) are crossed, what is the probability that the cross would result in a short pea plant?

Codominance occurs in calico cats, which allows for the Black and Tan colors to show. What percentage of the offspring represented in this P square will be calico (black and tan spotted)?

Snap dragon color is a incomplete dominant trait. A red flower (RR) is crossed with white flower (WW)? What color are flowers that are RW?

H= normal blood clotting

h=hemophilia

X^HX^h x X^HY

What is the probability that any of their offspring will have hemophilia?

What do the circles represent?

What do the squares represent?

Examine the parents in generation I. How many children do they have?

The shaded shapes represent individuals with attached earlobes (ee). What is the genotype of the generation I parents?

What goes in box 15

What is the genotype for a pea plant homozygous for round seeds (R), and heterozygous for yellow seeds?

A pair of identical chromosomes (one inherited from mom and one inherited from dad) are called ______________________________.

The failure of one or more pairs of homologous chromosomes or sister chromatids to separate "normally" during meiosis is called _____________________.

The trait this pedigree traces is recessive because it skips a generation and individuals can be carriers. What is the most likely genotype for person III-3?

The karyotype diagram below represents a human female with the genetic disorder known as Turner syndrome. Chromosomal analysis of this karyotype reveals the mutation is a result of

The karyotype diagram below represents a human male. Chromosomal analysis of this karyotype reveals the abnormality in this karyotype is:

This is known as Edwards Syndrome, can you identify which chromosome is trisomy?

Which of the following are genotypes for blood type B?

In the image above, what is the percentage of the offspring has the possibility of inheriting blood type O?

Which of the following genotypes code for the blood type AB?