3. Extensions to Mendelian Inheritance

Sister chromatids are held together at the:

If a DNA strand has the sequence 5'-ATCG-3', how many hydrogen bonds would form between this strand and its complementary strand?

Which statement best describes the principle of independent assortment as it relates to the inheritance of genes on different chromosomes?

Which of the following best explains how independent assortment occurs during meiosis and why it is important for genetic variation?

Imagine that two unlinked autosomal genes, each with two alleles (A/a and B/b), are present in a heterozygous individual (genotype AaBb). According to the principle of independent assortment, what proportion of the gametes produced by this individual will have the genotype ab?

Which of the following is least likely to change the gene pool of a population of chipmunks?

In the context of the peppered moth (Biston betularia), what is the typical wing color of the carbonaria morph?

In a population where the frequency of the recessive allele (q) is 0.3, what percentage of individuals are expected to be heterozygous according to Hardy-Weinberg equilibrium?

Which of the following traits would you expect to vary independently of beak length in a bug population, according to the principle of independent assortment?

Which of the following is ensured by genetic linkage?

What is the significance of the last triplet (taa) in a genetic sequence?

Which term describes a gene that is always expressed, regardless of the alleles present at other loci?

Which of the following base pairings is incorrect in DNA?

Allele pairs are most likely to assort independently of one another when:

Which of the following statements accurately describes both pleiotropy and polygenic inheritance?