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natita [175]
3 years ago
6

__________ is best defined as a sudden variation in an inheritable characteristic, as distinguished from a variation that result

s from generations of gradual selection.
Biology
1 answer:
Sloan [31]3 years ago
7 0

Answer: Mutation

Explanation: Mutation is a change in DNA sequence, it may occur due to error when the DNA is copied or it can arise from various environmental factors such as exposure to chemicals, UV radiation, Highly infectious microbes.

Mutation maybe spontaneous. Acquired mutations occur at some point in a person's life and are present only in certain cells, not in every cell in the body while some may target a tissue, an organ or an entire system.

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3. The picture on the right shows the sequence of nitrogen bases on part
Tresset [83]

Answer: C

Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.

7 0
3 years ago
Fill in the blanks to complete each sentence about dry climates.
Savatey [412]

Dry climates do not have sufficient precipitation during the most of the year.

Desert are located in the arid climate.

The semiarid climate is in a grassland, or steppe, region.

4 0
3 years ago
Short segments of newly synthesized DNA are joined into a continuous strand by _____.Short segments of newly synthesized DNA are
Sloan [31]

Answer:

a. Ligase

b. Ligase ( it's repeated)

Explanation:

DNA synthesis begins, therefore, by synthesizing a short segment of RNA called a primer, which primer is synthesized by an enzyme called Primasa. Primasa is an RNA polymerase that uses DNA as a template. All fragments of Okazaki begin with a Primer. Subsequently, the DNA polymerase III Holoenzyme performs the synthesis of the corresponding DNA fragment until it reaches the next primer. At that time, DNA polymerase Ia replaces the DNA polymerase Holoenzyme III. The DNA polymerase I is responsible for removing the RNA primer through its 5'P-3'OH exonueotic activity and at the same time fills the hole by synthesizing DNA.

Finally, the two Okazaki fragments have to be joined, it is necessary to link the 3'OH end of a fragment with the 5'P of the next fragment. This work of sealing and joining the successive fragments is done by Ligase.

4 0
4 years ago
What process takes place in the structure? A. cellular respiration B. mitosis C. circulation D. chromatography A. cellular respi
Travka [436]
Cell respiration takes place in the mitochondria.
8 0
3 years ago
Read 2 more answers
The clinical findings of a client with diabetes mellitus show decreased glucose tolerance. Which complication is anticipated in
Savatey [412]

Answer:

Frequent yeast infections.

Explanation:

The two hormones insulin and glucagon hormones maintains the blood glucose level in the body. These hormones are released by the alpha cells and beta cells of the pancreas.

The inadequate amount of the insulin secretion can cause the development of Diabetes Mellitus in the individual. The client shows decrease glucose tolerance. This might cause due to the yeast infection in the client's body as the yeast consumes too much sugar.

Thus, the answer is frequent yeast infections.

4 0
4 years ago
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