Experiments subsequent to Griffith’s 1928 experiment showed that:

You sample a number of cells that have undergone meiosis looking for the production of recombinants between the genes ec and s. You find 92 cells with no crossovers between ec and s, 6 with one crossover between ec and s, 2 with two crossovers between ec and s, and 0 with three or more crossovers. What is the map distance between the genes ec and s?

RNA was first identified as the genetic material of the tobacco mosaic virus (TMV) through an experiment in which:

Which of the following statements is not true regarding DNA replication?

Nitrogenous bases bonded to other bases in the center of the DNA molecule are held together by what type of chemical bond?

The fraction of genes that two individuals share due to common ancestry is known as:

A frequency of recombination that is less than 50% implies:

P1 blue-flowered, short-stalked plants (++++) and white-flowered, long-stalked plants (ffss) are crossed. The resulting F1 offspring (+f+s) are test crossed to produce the following F2 progeny: 400 blue, short 400 white, long 100 blue, long 100 white, short What is the recombination frequency, as shown in the F2 generation?

Complementary strands of a DNA double helix have opposite chemical polarity but are synthesized in the same direction (replication fork movement). This is able to happen or in other words is accounted for by:

When a gene influences many aspects of the phenotype it is said to be: