Why is it necessary for a break to occur in the dna before the process of homologous recombination can occur?

Urine and solid waste leaves the frog's body through an opening called the

Which of the following time periods accurately represents the training period of an animal control officer? A. A few weeks to a few months B. A few months to one year C. One to two years D. Two or more years

Assume the California wheat breeder is certain the stripe rust resistant F2 plants in their nursery are either RR or Rr and the F1 parent of these F2s was the genotype Rr.

Which substance is the most acidic? sodium hydroxide tomato juice lemon juice water

A change in one nucleotide produces a different form of hemogoblin in some people. which condition results from this change? 1. diabetes 2. down syndrome 3. sickle cell disease 4. cancer

Light___. requires a medium to travel is refracted when it bounces off a shiny surface is created by vibrations in electric and magnetic fields moves in longitudinal waves

Skin cancer is to exposure to uv radiation as

What is the function of the sacrum?

In theory the enzymes should work in colder conditions but at a lower rate, why?

Cyanobacteria have been engineered to produce isobutanol directly. What advantage does this have over other alternative biofuels? a. It is an inherently renewable fuel source. b. Multiple processing steps can be avoided. c.