KR Incomplete and Codominance

Front

The different forms of a gene are called ---

Back

alleles

Front

Snapdragon color is an incomplete dominant trait. A red flower (RR) is crossed with a white flower (WW). What color are flowers that are RW?

Back

Pink

Front

In snapdragons, flower color is controlled by incomplete dominance. The two alleles are red (R) and white (W). A pink-flowered plant is crossed with a white-flowered plant. What is the probability of producing a pink-flowered plant?

Back

50%

Front

This type of inheritance pattern is a MIXTURE of two traits. This is known as ---

Back

incomplete dominance.

Front

In giraffes, long neck = GG. Medium neck = Gg. Short neck = gg. What is the probability that two parents with short necks will have offspring with medium necks?

Back

0%

Front

Define incomplete dominance.

Back

A genetic situation in which one allele does not completely dominate another allele, resulting in a new phenotype that is a blend of the two traits.

Front

Define codominance.

Back

A genetic scenario where both alleles in a heterozygote are fully expressed, resulting in offspring with a phenotype that is neither dominant nor recessive.

Front

What is a Punnett square used for?

Back

To predict the genotypes of offspring from a cross between two parents.

Front

If a red flower (RR) is crossed with a pink flower (RW), what are the possible genotypes of the offspring?

Back

RR, RW

Front

What is the phenotype ratio of a monohybrid cross between two heterozygous parents (Rr x Rr)?

Back

3:1 (dominant:recessive)