Reference no: EM133230003

1. Which of these is true about mutations?

a. Mutations can happen in any cell but only the mutations in reproductive cells are manifested in the next generation.

b. The majority of mutations go un-noticed because our cells either correct them or abort the mutated cells.

c. Most mutations occur in regions of our DNA that don't actually do anything visible.

d. all of these.

2. Beta Lactams (as discussed in Chapter 13) will kill bacteria by _____________________.

a. Altering their DNA.

b. Breaking down bacteria cell walls faster than the bacteria can regenerate them.

c. Disrupting bacterial nucleus ability to undergo mitosis.

d. Altering a bacteria's ability to take up zinc.

3. Igneous rocks are the least likely to contain fossil footprints. Igneous rocks are made by __________

a. layers of sediment

b. metamorphosing rock due to pressure.

c. cooling volcanic lava

d. low oxygen atmosphere

4. Differing mating rituals is an example of a temporal isolation to interspecies breeding.

True

False