Mendel verified true-breeding pea plants for certain traits before undertaking his experiments. The
term "true-breeding" refers to:
a. genetically pure lines.
b. organisms that have a high rate of reproduction.
c. organisms that will produce identical copies of themselves upon reproduction.
d. organisms that are heterozygous for a given trait.
e. organisms that are homozygous for all possible traits.
A
You might also like to view...
Polyploid plants are often unhealthy as compared to other plants
Indicate whether the statement is true or false.
Crossing over mixes up _____
a. chromosomes b. alleles c. zygotes d. gametes
Coloration in the peppered moth (Biston betularia) is determined by a single gene with two alleles showing complete dominance. Dark moths are homozygous dominant or heterozygous for the gene, light moths are homozygous recessive. In a sample of 100 moths, you determine that 64 of the moths are dark. According to the Hardy-Weinberg rule, the expected frequency of the dominant allele is ________.
A. 0.36 B. 0.6 C. 0.64 D. 0.4 E. cannot be determined
The term ________ variable refers to one of two variables involved in an experiment, in which neither variable can be isolated as having an effect
A) multiple B) confounding C) blind D) statistical