What are the different forms of genes called?

This is the allele that can mask others.

This is the allele that is masked by others

The genetic make-up of an organism.

Observable characteristics of a gene.

Human males with two different sex chromosomes.

Human females with two of the same sex chromosomes.

Condition when only one copy of a gene is present in diploid cells. Human males for some genes.

What is the mode of inheritance?

What is the most likely genotype of the individual II-3?

What is the mode of inheritance?

What is the mode of inheritance?

What is the mode of inheritance?

In humans, the allele for blood type A (A) is dominant and the allele for blood type O recessive (O). What is the phenotype of a heterozygous individual?

In humans, the allele for blood type A (A) is dominant and the allele for blood type O recessive (O). What is the genotype of a heterozygous individual?

Normal blood clotting is dominant (N) and hemophilia C is recessive (n).A man with normal phenotype and a woman with hemophilia C have 8 children. All 8 children are phenotypically normal. What are the most likely genotypes of the parents?

Normal hearing is dominant (H) and a mutation that leads to congenital deafness is recessive (h). A man and a woman are both of normal hearing, but they have a child who is deaf. If the man and the woman have more children, what proportion of their offspring are expected to have normal hearing, and what proportion of their offspring are expected to be deaf?

Normal hearing is dominant (H) and a mutation that leads to congenital deafness is recessive (h). A man and a woman are both of normal hearing, but they have a child who is deaf. If the man and the woman have more children, what proportion of offspring will have a heterozygous genotype?

Normal blood clotting is dominant (N) and hemophilia C is recessive (n); normal hearing is dominant (H) and an allele that causes deafness is recessive (h); blood type B is dominant (B) and blood type O is recessive (O). A man is homozygous dominant for normal blood clotting, heterozygous for hearing, and heterozygous for blood type B; a woman is heterozygous for blood clotting, homozygous recessive for hearing, and heterozygous for blood type B.

What proportion of their offspring are expected to have normal blood clotting, normal hearing and blood type B?

Normal blood clotting is dominant (N) and hemophilia C is recessive (n); normal hearing is dominant (H) and an allele that causes deafness is recessive (h); blood type B is dominant (B) and blood type O is recessive (O). A man is homozygous dominant for normal blood clotting, heterozygous for hearing, and heterozygous for blood type B; a woman is heterozygous for blood clotting, homozygous recessive for hearing, and heterozygous for blood type B.

What proportion of their offspring are expected to have hemophilia C, to be deaf, and to have blood type O?

Normal blood clotting is dominant (N) and hemophilia C is recessive (n); normal hearing is dominant (H) and an allele that causes deafness is recessive (h); blood type B is dominant (B) and blood type O is recessive (O). A man is homozygous dominant for normal blood clotting, heterozygous for hearing, and heterozygous for blood type B; a woman is heterozygous for blood clotting, homozygous recessive for hearing, and heterozygous for blood type B.

What proportion of their offspring are expected to be heterozygous for all 3 genes?

Red green color blindness shows X-linked recessive inheritance. A couple with normal vision are expecting a child. The female has a red-green color-blind father and a mother with normal vision (assume homozygous dominant).

What is the probability that the couple will have a child with normal vision?

Red green color blindness shows X-linked recessive inheritance. A man is red-green color blind and his partner has normal vision (assume no affected alleles). What is the probability that the couple will have a red-green color blind child?

The dominant allele that causes achondroplasia is lethal before birth in the homozygous form. What is the chance that a man and a woman with achondroplasia have a child with achondroplasia?

In Labrador dogs, gene E determines whether pigment is deposited in the coat (E allows color deposition and e prevents color deposition) and gene B controls the amount of melanin production (B = black pigment; b = brown pigment).

If 2 black Labradors (BBEe and BBEe) are bred together, what proportion of offspring are expected to be yellow?

In Labrador dogs, gene E determines whether pigment is deposited in the coat (E allows color deposition and e prevents color deposition) and gene B controls the amount of melanin production (B = black pigment; b = brown pigment).

A female dog has the genotype Bbee. What color is she?

In Labrador dogs, gene E determines whether pigment is deposited in the coat (E allows color deposition and e prevents color deposition) and gene B controls the amount of melanin production (B = black pigment; b = brown pigment).

A male dog has the genotype bbEe. What color is he?