7) Diabetes is recessive.
A) If woman has diabetes and marries a man that doesn’t have it, is it possible for their offspring to acquire this disease?
100% Aa, Heterozygous 100% No diabetes
B) If none of the father’s ancestors had ever had diabetes, would their children have a chage of getting the disease? Explain
our hair comes from our mother's father.Is it true or not?
Flower position, stem length, and seed shape were three
traits that were studied by Mendel. Each is controlled by
an independently assorting gene. If a plant that is
heterozygous for all three traits was allowed to self-
fertilize, what proportion of the offspring would be
expected to show all three dominant phenotypes?
In sesame, the one-pod condition (P) is dominant to the
three-pod condition (p), and normal leaf (L) is dominant
over wrinkled leaf (l). The two characters are inherited
independently. Determine the genotypes and phenotypes of
the two plants which produce the following progeny: 318 one-
pod normal, 98 one-pod wrinkled, 323 three-pod normal and
104 three-pod wrinkled.
In horses coat color is dependent upon genes as follows:
A_B_ results in bay, aaB_ in black, A_bb in chestnut, aabb
in liver. In addition, palimino is derived by Dd with
chestnut. A palimono stallion (DdAAbb) is crossed with a
palimino mare (DdAAbb). What percent of the offspring will
Explain in terms of gene product function how a mutant
allele can be dominant? recessive?
Is Recombination in Human Mitochondrial DNA really possible?
Cystic fibrosis (CF) occurs with a frequency of about
1/2500 Caucasian newborns and is inherited as an autosomal
recessive. A woman had an older sister die from
complications of this disease. CF is not present among
relatives of her husband. Both the woman and her husband
have normal phenotypes. What is the chance this couple will
have a CF child?
In cucumbers normal leaves (N) are dominant to curled
leaves (n) and elongated fruit (L) is dominant to spherical
fruit and these genes are linked on the same chromosome. If
a pure-breeding normal-leaved, elongated fruit cucumber is
crossed with a curled-leaved, spherical fruit cucumber,
what will be the phenotype of the F1? the phenotypic ratio
of the F2?
What are the differences between Genetic Engineering and
What are the dangers of Genetically Engineered foods?
In cats yellow is due to gene B and black to its allele b.
These genes are located on the X chromosome (sex-linked).
The heterozygous results in calico (tortoise shell). What
kinds of offspring (sex & color) are expected from the
cross: black male & calico female? Most calico males are
Has vitamin c been produced in a human naturally before?
Consider two linked autosomal genes. The dominant allele C
of the first gene causes cataracts of the eye, whereas its
recessive allele produces normal eyes. The dominant allele
P causes polydactyly (an extra finger) whereas its allele
(p) produces a normal number of fingers. A man with
cataracts and normal fingers marries a woman with
polydactyly and normal eyes. Their son has both polydactyly
and cataracts and he marries a woman with neither trait.
What is the probability that their first child will have
cataracts and polydactyly?
im doing my msc in biotechnology.im concern that can go for
phd in genetics? and how??
plz help me in this..thank you