Human Genetics Practice EOC Questions

Front

What is the inheritance pattern of short wings in Drosophila fruit flies?

Back

Short wings in Drosophila fruit flies is an X-linked, recessive trait.

Front

What are the expected offspring phenotypes when a short-winged female mates with a long-winged male Drosophila?

Back

All females will be long-winged, and all males will be short-winged.

Front

What disease is most likely to occur after excessive exposure to ultraviolet radiation?

Back

Skin cancer.

Front

What is the relationship between blue (F^B) and red (F^R) scales in a certain fish?

Back

Blue and red scales are codominant.

Front

If a fish has the genotype F^BF^R, what does its appearance look like?

Back

It has a patchwork of blue and red scales.

Front

What is the probability of an offspring being patchwork when crossing two heterozygous fish with F^BF^R genotypes?

Back

The probability is 2 out of 4 or 50%.

Front

What genetic abnormality can be identified through karyotyping?

Back

An extra chromosome.

Front

What are the possible genotypes of a child from a parent with Type A blood and a parent with Type O blood?

Back

The possible genotype is I^Ai.

Front

What is the definition of codominance in genetics?

Back

Codominance is a relationship between two alleles where both are expressed equally in the phenotype.

Front

What is the significance of karyotyping in genetics?

Back

Karyotyping is used to identify chromosomal abnormalities, such as extra chromosomes.