Mendel’s crossing of round-seeded pea plants with wrinkled-seeded pea plants resulted in progeny that all had round seeds. This indicates that the wrinkled-seed trait is Select one: a. rare b. abnormal c. dominant d. codominant e. recessive

Gregor Mendel was a critical contributor to our understanding of inheritance today. In his experiments, he tracked seven visual traits of pea plants and ensured that they produced offspring identical to themselves. What are the terms that we used to identify two separate factors? a. genotype; true breeding b. genotype; cross breeding c. phenotype; true breeding d. phenotype; cross breeding

In the Pea plants studied by Mendel, green pod colour is dominant over yellow pod colour. You have grown the same species in your garden and the plant is producing only green pods. You were guaranteed by the garden store that it was homozygous (pure-breeding) but you are not completely sure. Show how you can find out.

If an allele for round seed coats (R) is dominant to an allele for wrinkled (r), what proportion of the progeny will be round in the following cross: Rr x RR? a. 0/4 b. 1/4 c. 2/4 d. 3/4 e. 4/4

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.

Suppose that a Mendel's dihybrid cross between two double heterogotes (AaBb  x AaBb) gave you the phenotypic ratio of 15:1, assuming that the dominant allele is completely dominant over the recessive allele. Which of the following is CORRECT?     A. The A_B_ and aabb have the same phenotype. (_ means either the dominant allele or recessive allele)   B. The aaB_ and aabb have the same phenotype. (_ means either the dominant allele or recessive allele)   C. The aaB_ and A_bb have the same phenotype. (_ means either the dominant allele or recessive allele)   D. All of the above.

In peas, yellow pods are dominant to green pods. Show the results of a cross between a pure yellow plant and a hybrid yellow plant.

Gregor Mendel proposed the law of independent assortment based on the observation that dihybrid crosses of heterozygous individuals produced progeny in a 9:3:3:1 ratio. For this observation to hold, which assumption must be true? A. The traits are governed by genes on different chromosomes. B. The traits are governed by genes on the same chromosome. C. The traits are governed by genes with only two alleles. D. The traits are governed by genes with only three alleles.