Biology, 07.04.2020 17:23 TerronRice

A geneticist wants to isolate mutants in mice that are defective in nucleotide-excision repair (NER) but is unable to do biochemical analysis on the NER system so must use some other method to identify putative NER mutations. Which of the following would most likely be useful in identifying NER mutations in mice?1. Identifying possible NER mutants by their progeny consisting of a reduced number of females with a normal number of males when they are crossed to normal mice
2. Identifying possible NER mutants by their high spontaneous mutation rates for base-pair substitution and frameshift mutations
3. Identifying possible NER mutants by their increased susceptibility to UV irradiation compared to normal mice
4. Identifying possible NER mutants by their high rate of cytosine deaminations compared to normal mice
5. All of the above would be characteristic of NER nutants

Answers: 3

Show answers

Another question on Biology

Biology, 22.06.2019 05:40

Why do we perceive objects as retaining their brightness under different lighting levels?

Answers: 1

Answer

Biology, 22.06.2019 11:30

Female luna moths (actias luna) attract males by emitting chemical signals that spread through the air. a male hundreds of meters away can detect these molecules and fly toward their source. the sensory organs responsible for this behavior are the comblike antennae visible in the photograph shown here. each filament of an antenna is equipped with thousands of receptor cells that detect the sex attractant. based on what you learned in this chapter, propose a hypothesis to account for the ability of the male moth to detect a specific molecule in the presence of many other molecules in the air. what predictions does your hypothesis make? design an experiment to test one of these predictions.

Answers: 1

Answer

Biology, 22.06.2019 11:30

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

Answers: 3

Answer

Biology, 22.06.2019 12:00

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not

Answers: 1

Answer

You know the right answer?

A geneticist wants to isolate mutants in mice that are defective in nucleotide-excision repair (NER)...

Questions