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elena55 [62]
2 years ago
12

If an incorrect nucleotide is incorporated once per thousand nucleotides, proofreading normally catches 999 incorrectly incorpor

ated nucleotides per thousand, and mismatch repair detects 999 residual replication errors per thousand, leading to a 1 per billion error rate for replication as a whole. What will be the overall error rate of replication in a strain of E. coli that has an intact mismatch repair pathway but has a mutation in DNA polymerase that results in it having no proofreading activity?
Biology
1 answer:
lilavasa [31]2 years ago
3 0
Huh? What do you mean
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Max tried an experiment in which he added red-dyed salt water to clear freshwater. He noticed that a lot of the red water sank b
Maksim231197 [3]

Answer:

A

Explanation:

Adding salt to water causes its density to increase. Denser water will sink below less dense water.

7 0
1 year ago
Sonny took 16 seconds to finish a 100 m race . what was sonny 's average speed in the race ? give your answer decimal form
Nikitich [7]

Answer:

6.25 meters per second

Explanation:

100 / 16 = 6.25

7 0
1 year ago
One of the first Mendelian traits identified in humans was a dominant condition known as brachydactyly. This gene causes an abno
kvv77 [185]

Answer:

The correct option is C. Rare alleles tend to remain rare even when they are dominant.The distribution of a gene among individuals is determined by mating and environmental factors.

Explanation:

Most people believe that a rare allele would only be recessive. But this is not correct. A rare allele can be dominant. The frequency of an allele to occur in a population will depend on the environmental factors. The alleles which code for traits that are best suitable for living in an environment will be seen in more abundance. The frequency of an allele to occur in a population also depends on the breeding trends of the population.

5 0
1 year ago
Match the following vocabulary words. 1.ciliary musclesA transparent liquid which is located between the cornea and iris. 2.opti
klio [65]

Answer:

1. Aqueous humor.

2. Ciliary muscles.

3. Cone.

4. Cornea.

5. Iris.

6. Optic nerve.

7. Photoreceptor.

8. Retina.

9. Rod.

10. Sclera.

11. Vitreous humor.

Explanation:

A sensory system can be defined as components of the central nervous system (CNS) which comprises of the brain, neural tissues or pathways and sensory neurons responsible for sensory functions, perception and processing sensory informations such as sound, light, heat, etc.

Basically, the central nervous system (CNS) interprete the neural signals that are generated from stimuli that are detected by the sensory system. The five (5) main sense organs in the sensory system are: skin, tongue, ears, nose and the eyes.

An eye can be defined as a specialized organ of sight with the capability to receive visual images that are subsequently transduced into neural signals and relayed to the brain for processing and interpretation. Some of the components of the human eye matched with their description are;

1. Aqueous humor: a transparent liquid which is located between the cornea and iris.

2. Ciliary muscles: muscles attached to the lens to change its shape.

3. Cone: a photoreceptor cell which functions best in bright light. It detects color.

4. Cornea: the transparent portion of the sclera at the front of the eye.

5. Iris: a special part of the choroid layer composed of colorful tissue.

6. Optic nerve: the nerve connecting the eye to the brain.

7. Photoreceptor: specialized cells located in the retina that receive light images.

8. Retina: a delicate light-sensitive membrane covering the inside of the eyeball.

9. Rod: a photoreceptor cell which is sensitive to dim light, but detects no color.

10. Sclera: a fibrous material surrounding the eye to give it shape.

11. Vitreous humor: a transparent jellylike substance filling the eyeball.

8 0
1 year ago
Read 2 more answers
which of the following best describes the relationship between the structure of the cell membrane and its function?
forsale [732]
  <span>The proteins that are embedded in the cell membrane act as channels to transport substances in and out of the cell.</span>
6 0
1 year ago
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