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sertanlavr [38]
3 years ago
11

Of the nucleotide sequence on one side of a DNA molecule is CCTAGCT, then the sequence on the complementary strand of DNA will b

e______________.
Biology
1 answer:
riadik2000 [5.3K]3 years ago
4 0

Answer:

GGATCGA

Explanation:

This question portrays what occurs during DNA replication in which nucleotide sequences that are complementary to the template strand are synthesized. The DNA molecule consists of two long polynucleotide chains composed of four nucleotide subunits held together by hydrogen bonds. Each of the chain is known as a DNA strand.

In the DNA, base portions are paired together in an hydrogen bonding using the complementary base pairing rule. Complementary base pairing is the phenomenon where DNA Guanine always binds to Cytosine in an hydrogen bonding while Adenine binds to Thymine in the same manner i.e. A-T, G-C. The complementary base pairing that binds nucleotide bases in DNA is responsible for the double-helical structure of the DNA.

Hence, in a DNA molecule with nucleotide sequence CCTAGCT, a complementary strand of DNA will have the nucleotide sequence GGATCGA.

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Evgesh-ka [11]

Answer:

1. False

2. False

3. True

Explanation:

1. Compliance is the capacity of a container to increase in size to allow it hold more content. Blood vessel, arteries and veins expand (increase in volume) to be able to accommodate a surge in blood flow, which is as a result of an increase in pressure of the blood from the heart pumping of the blood

Therefore, compliance in the tendency for blood vessel volume to increase as the blood pressure <em>increases</em> not decrease

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2. A large compliance is indicative of being highly sensitive to changes in pressure

Compliance, C = ΔV/ΔP

From the above equation, a blood vessel with a large compliance, exhibit a large increase in volume when the increase in pressure is small

Therefore, the statement 'Blood vessels with a large compliance exhibit a small increase in volume when pressure increases a small amount; is false

3. The compliance of the vein ranges from 10 to 20 times (30 times in some literature) greater than arteries. A factor which can be affected by the vascular smooth muscle contraction or relaxation

Therefore, the statement, 'venous compliance is approximately 24 times larger than arterial compliance, so as venous pressure increases the volume of veins greatly increases' is true

4 0
3 years ago
Robins typically lay four eggs. Four eggs allow the offspring to be well fed, whereas larger clutches may result in malnourished
Amanda [17]

Answer:

Stabilizing selection

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During the process of stabilizing selection, nature does not favour the extreme phenotypes of the population but the intermediate phenotype with the maximum number of population.

In the given question, the Robin laid four eggs, neither more than four nor less than four which could have more disadvantages than the advantages.  Since the intermediate number of eggs is favoured by nature therefore the stabilizing pattern is observed.

Thus, Stabilizing selection is correct.

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