Genetics

Genetically speaking, what do we know about birth defects caused by thalidomide, cocaine and alcohol?

Genetics

What do we know about genetic effects of toxic chemicals such as Agent Orange and DDT?

% of traits passed to progeny

The average pea pod contains about 7 peas. The gene for smooth peas is dominant over the gene for wrinkled peas. If heterozygous pea pods grown from smooth peas are self-fertilized and all of the pods have 7 peas, what percentage of the pods will have: a) all smooth peas? b) 5 smooth and 2 wrinkled peas?

Probability

In humans, the ability to taste PTC is inherited as a dominant gene (T; Taster). in a marriage between two heterozygous tasters (Tt): a) what is the probability of 3 taster children? b)what is the probability of 3 taster girls? c)if they have 5 children, what is the probability that the first 3 will be tasters and the last ...continues

Corn genotypes

a) While examining an ear of corn, you notice that the kernels in the ear display two apparent phenotypes; yellow and white. inspired by your understanding that these represent different alleles of a single gene, you count the kernels of each type and you asses 347 yellow (Y) kernels and 111 white (y) kernels. if this ear of c ...continues

What should be the criteria for making a disease suitable for newborn screening?

What should be the criteria for making a disease suitable for newborn screening? Describe the testing and treatment of phenylketonuria and galactosemia.

What makes some mutations prevalent in small populations and what makes them...

What makes some mutations prevalent in small populations and what makes them prevalent in large populations? Use the ABO blood groups, sickle-cell anemia and cystic fibrosis as examples.

In what cases is disease only inherited from the mother and only to her sons...

In what cases is disease only inherited from the mother and only to her sons, and in what cases is disease only inherited from the mother but to both her sons and her daughters? Use hemophilia and Leber's optic neuropathy as examples.

Genically, How can we test for carrier status of cystic fibrosis and Tay-Sachs disease...

Genically, How can we test for carrier status of cystic fibrosis and Tay-Sachs disease and how can we test for the likelihood to develop Alzheimer's disease at old age?

Genetics - How can we amplify a segment of DNA?

How can we amplify a segment of DNA? Describe the principles of the PCR (polymerasechain reaction) method.