I think the answer will be:
D.random loss or gain of genes
False. The opportunity of a new job or house you have wanted can cause stress as well. Stress is an emotion just like crying over extreme happiness or sadness
There are 2 types of photoreceptors rods and cones they react to light in different ways.
Rods-
Respond to low levels of light and are primary responsible for night vision.
They are poor at detecting fine details in an image and are not involved in colour vision.
Cones-
Respond to high levels of light and are primary responsible for our vision in well-lit conditions.
They detect fine details and are responsible for colour vision.
Answer:
A nucleosome forms hydrogen bonds with the phosphodiester backbone and with bases <em>(via the minor groove) </em>of dna.
A polymer is made up of monomers. A monomer is a unit that occurs in repetitive chains. Lipids do not occur in repetitive chains, so they are not classified as monomers. Since they're not monomers, they can't make up polymers, either.
