5-Genetics Review

Front

What is the genotype of parents who are healthy but have offspring with a genetic disease?

Back

Heterozygous

Front

Which genotype represents a pure dominant trait?

Back

AA

Front

If cows have 60 chromosomes in their body cells, how many chromosomes are in their sex cells?

Back

30

Front

In a pedigree chart, how can you identify the number of females with a specific trait?

Back

Count the females marked with the trait.

Front

How are traits passed down from parents to offspring?

Back

Through DNA.

Front

What is a genotype?

Back

The genetic makeup of an organism.

Front

What is a phenotype?

Back

The observable characteristics of an organism.

Front

What does homozygous mean?

Back

Having two identical alleles for a trait.

Front

What does heterozygous mean?

Back

Having two different alleles for a trait.

Front

What is the role of DNA in inheritance?

Back

DNA carries the genetic information that determines traits.