The double helix model of DNA structure was proposed by

A retail store had monthly sales of $56200 and spent 20% of it on health insurance. How much was spent on health insurance?

24. During what stages of the cell cycle are sister chromatids bound together by cohesin?  

Crick and his colleagues proposed that the genetic code consists of a series of blocks of information, called ________, each corresponding to one amino acid in an encoded protein.

35. THIS IS NOT A HARD QUESTION…THINK: You are examining the effect of maturation-promoting factor (MPF) in sea urchin cells, which have a diploid number of 36. If you fuse a dividing sea urchin cell with a G1 arrested oocyte, what would be the outcome?  

In 1910, Morgan did a series of experiments with the fruit fly Drosophila, an organism where females are XX and males are XY. When a mutant male fly with white eyes was crossed with a wild type female with red eyes, none of the F1 progeny had white eyes but 18% of the F2 progeny had white eyes. Unexpectedly, all of these white-eyed F2 flies were males. Based on these results, Morgan concluded that white eyes is caused by a recessive X-linked allele. Suppose Morgan had found that half of the F1 progeny had white eyes but all of these white-eyed F1 flies were females. In this case, a valid hypothesis would be

If the sequence of bases in the template strand of a DNA molecule is 3′ ATCGCTCC 5′, what is the sequence of bases in the RNA that is transcribed from this molecule?

Because the two strands of a DNA molecule are ________ to each other, either one can be used as a template to reconstruct the other.

Messenger RNA molecules contain information that is used to synthesize ________.

The genetic code uses ________ nucleotide(s) to specify one amino acid.