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yan [13]
3 years ago
15

Help please, Please try to answer ASAP, Will give 10 points

Biology
1 answer:
lisabon 2012 [21]3 years ago
4 0

Answer:

a

Explanation:

called Pangaea (meaning "all lands"), and over time they have drifted apart into their current distribution. He believed that Pangaea was intact until the late Carboniferous period, about 300 million years ago, when it began to break up and drift apart.

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How does latitude affect a climate zone
kykrilka [37]
Latitude determines the amount of sunlight the place receives. The climate of a place is affected by many factors—its latitude, elevation, terrain, geographic proximity to mountains, rivers, lakes, and ocean.
8 0
3 years ago
Which of the following is/are required for the polymerization reaction catalyzed by DNA polymerase III?
Temka [501]

Answer:

D. I, IV, VI, and VII

Explanation:

DNA polymerase III has both 5' to 3' polymerization activity and 3' to 5' exonuclease activity (the proofreading). DNA pol III requires divalent magnesium ions for its polymerization and proofreading activities. Here, the magnesium ions serve as cofactor.

DNA polymerase III cannot start the process of synthesis of new DNA strand de novo and uses an RNA primer synthesized by primase enzyme. The polymerization activity of DNA polymerase III elongates the RNA primer in 5' to 3' direction. The primers are removed by 5' to 3' exonuclease activity of DNA polymerase I.

During polymerization, the DNA polymerase III uses existing DNA strand as a template. The four dNTPs namely deoxyadenosine triphosphate (dATP), deoxycytidine triphosphate (dCTP), deoxyguanosine triphosphate (dGTP) and deoxythymidine triphosphate (dTTP) are added to the RNA primer according to the sequence of DNA template.

8 0
4 years ago
Red -green color blindness is an x linked recessive disorder . Since normal vision is dominant, it is typically represented as x
Oduvanchick [21]

Answer:

          x         y

x8     x8x     x8y

x8      x8x     x8y

The results of the punnet square show that:

They will not have a son who will be colour blind.

They will not have a daughter who is colour blind.

All the daughters born will be carriers of red- green colour blindness.

The genotype of the two parents will be:

Genotype of mother: x8,x8

Genotype of father: x, Y

5 0
3 years ago
A small number of finches live in a protected bird area. They are given as
aalyn [17]

Answer:

c

Explanation:

6 0
3 years ago
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Which of the following exists as a single, self-supporting cell that travels using numerous hairlike cilia?
NeX [460]

Answer:

amoeba i think i might be wrong

Explanation:

7 0
3 years ago
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