Mendel performed crosses in which he used pollen from a white-flowered plant to fertilize a purple-flowered plant and pollen from a purple-flowered plant to fertilize a white-flowered plant, showing the same results with both. What did these reciprocal crosses demonstrate?     A.  That the plants were not sterile.  B.  That there was no epistasis.  C.  That the trait could be passed from either parent.  D.  B and C.

In a cross between short and tall plants, the F1 are all as short as their short parents. In the F2, roughly three quarters of the plants are short, while the rest are tall. Which is most accurate? a. Inheritance is particulate and tall is dominant to short.  b. Inheritance is particulate and short is dominant to tall.  c. Inheritance is particulate and neither trait is dominant.  d. Inheritance is blending.  e. Inheritance is not Mendelian.

A plant that is homozygous for the recessive yellow pod color is crossed with a plant that is heterozygous. Which phenotype will appear MOST in the offspring?   A. There will only be plants with green pods.   B. There will be more plants with green pods.   C. There will be more plants with yellow pods.   D. Plants with yellow and green pods will appear in equal numbers.

Gregor Mendel developed an understanding of heredity through his experiments with pea plants. The diagram below shows a cell with 2 pairs of homologous chromosomes and genotype of AaBb. a. Identify all the possible allele combinations that could be formed if this cell undergoes meiosis. b. Identify one of Mendel's laws that is illustrated when you write out these allele combinations. EXPLAIN this law.

You inspect an ear of corn and find the following number of kernels: 461 red and starch, 142 red and sweet, 156 yellow and starchy and 53 yellow and sweet. a. What genotype did the parent corn plants probably have? b. Support your answer by working out the cross with a Punnett square

Predict the type of progeny produced by Mendel’s crosses between pure-breeding plants with discrete, antagonistic traits, such as purple versus white flowers

A student observes corn to analyze the outcome of two genes--  The Red gene (R or r) where purple (R) is dominant to yellow (r) and the Sugar gene (S or s) where smooth (S) is dominant to wrinkled (s). The student predicts the parent’s genotypes are RrSs and rrss. How many possible gametes would be formed by each parent? Parent 1 would have 2 gamete combinations and Parent 2 would have 2 gamete combinations Parent 1 would have 4 gamete combinations and Parent 2 would have 2 gamete combination Parent 1 would have 4 gamete combinations and Parent 2 would have 1 gamete combination Parent 1 would have 4 gamete combinations and Parent 2 would have 4 gamete combination

In a certain species of dogs, long hair (L) is domiant to short hair (l). Cross two heterozygotes. a. What is the probability of an offspring with long hair? b. What is the probability of an offspring with short hair?