The first one is the right one that will give you points
The correct answer is: 5) NER recognizes helix distortions, while BER recognizes specific base damage.
DNA damage that occurs as a result of radiation, oxidizing reagents, chemicals and other mutagens can be repaired. Excision repair repairs single strand DNA damage and it includes:
• Nucleotide excision repair (NER)-it detects and repairs types of damage that distort the DNA double helix such as those of UV radiation (thymine dimers); not only the damaged nucleotide(s) are removed but also a surrounding patch of DNA
• Base excision repair (BER)-it detects and removes certain types of damaged bases (small, non-helix-distorting bases); enzyme glycosylase is responsible for this type of repair
Evacuate low lying areas near the coast.
Answer:
D) The area was on land.
Explanation:
We can tell that this is the answer because of the process of elimination.
- It is not A or C, because there is not enough information given to us to determine whether the area was hot or cold.
- It is not B, because ferns do not grow in the ocean. (Unless it a specific type of water fern that have not heard about... but this is <u>highly unlikely</u>, so don't worry.)
- This leaves us with: D) The area was on land. This is the correct answer because ferns do grow on land, and a sedimetary rock containing a fern fossil is much more likely to be found on land than on the ocean floor.
Hope I could help!
-Cat :')
