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Gala2k [10]
3 years ago
12

Describe the four kinds of bases found in DNA.

Biology
2 answers:
vova2212 [387]3 years ago
6 0
H2A,H2B,H3,H4 
H1 histones lies outside the nucleosome
grin007 [14]3 years ago
3 0
Adenine, Thymine, Guanine, and Cytosine.
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Restriction endonucleases are especially useful if they generate sticky ends. What makes an end sticky?
Mazyrski [523]

The question is incomplete as it does not have the options which are:

A) single-stranded complementary tails

B) blunt ends

C) poly-A sequences

D) 5' cap

E) interference

Answer:

A) single stranded complementary tails

Explanation:

Restriction endonuclease is the enzyme which cuts the DNA sequence in the internal sequence.

The endonuclease enzyme can cut the DNA sequence in a way that it can form the cuts with the single-stranded overhangs called sticky ends and without overhangs called blunt ends.

The sticky ends are produced when the enzyme makes cut at the single strand and then makes the cut at between the same base at the nitrogenous base. This type of asymmetrical cut forms the single-stranded overhangs which can form the complementary base pairs easily.

Thus, Option-A is correct.

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4 years ago
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4 years ago
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Molluscs with a ventrally flattened foot that move via muscle contractions along this structure are called
pishuonlain [190]

Gastropods are centrally flattened molluscs that move via muscle contractions.

<h3>What are gastropods?</h3>

Gastropods are invertebrates animal that belong to the phylum molluscs. Examples of gastropods are snails and slugs. The lol be in either salt water or freshwater or land. Their body parts include head,mantle, body mass and shell. They have muscular foot which help in movement through muscular contractions.

Therefore, Gastropods are centrally flattened molluscs that move via muscle contractions.

Learn more about gastropods here.

brainly.com/question/18943590

6 0
3 years ago
What species are currently evolving for aquatic environments?
Fofino [41]

Answer: Hello Luv.......

How whales and dolphins evolved for life at sea ... important ways to allow these animals to transition from terrestrial to aquatic environments.

Explanation:

From tropical corals to tawny owls, some species are already being pushed to ... For instance, an experiment growing brewer's yeast in environments with deadly ... Before there was "Climate Change" there was STILL evolution. ... and Horses Dig Wells That Provide Water for a Host of Desert Species.

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3 years ago
In which type of reproduction can cells divide through the process of mitosis ?
Aleks04 [339]
<span>Mitosis is carried out for growth and development processes. The cell divide and multiply for growing and removing the worn out cells/damaged cells. Two identical daughter cells are formed in mitosis. Errors in the same may cause genetic disorders, Sex cells divide by the process of meiosis. </span>
6 0
3 years ago
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