Type the number

Exercise and reference answers

Questions

1. Answer

   23

   Question

   Pairs of chromosomes in a human cell

2. Answer

   1962

   Question

   Year Watson, Crick and Wilkins won the Nobel Prize

3. Answer

   2

   Question

   Hydrogen bonds between adenine and thymine

4. Answer

   3

   Question

   Hydrogen bonds between cytosine and guanine

5. Answer

   10

   Question

   Base pairs per turn of the helix

6. Answer

   42

   Question

   Minutes E. coli takes to replicate its chromosome, about

Instructions

Type the number only.

Explanation