genetics and punnett squares

Front

Heterozygous is when...

Back

the alleles are different.

Front

If one parent is heterozygous (Aa) and the other is homozygous recessive (aa) for a trait, what percentage of their offspring is expected to be heterozygous?

Back

50%.

Front

The genetic makeup of an organism is called...

Back

genotype.

Front

What you see, or the physical appearance of an organism is called...

Back

Phenotype.

Front

In incomplete dominance, if B codes for red flowers and b codes for white flowers, what are the phenotypes of the parents?

Back

50% red and 50% pink.

Front

What is a Punnett square used for?

Back

To predict the genotypes and phenotypes of offspring from genetic crosses.

Front

Define genotype.

Back

The genetic constitution of an individual, represented by alleles.

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism.

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene.

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene.