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monitta
3 years ago
13

What enzyme breaks the hydrogen bonds between bases?

Biology
1 answer:
Naya [18.7K]3 years ago
5 0
(A)Helicase is that enzyme...
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Why is gene regulation necessary for multicellular organisms
kozerog [31]
<span>as you need to produce different phenotypes from the same genotype you need to regulate gene expression (turn some on, others off).</span>
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Why do you think exact measurements matter in recipes? Write in complete sentences what you think and why.
natali 33 [55]

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if ur makin a cake for instance and it calls for on tbs of salt and u add 5 cups that will be delicious right lol no i think it matter coz u need to put the right amount or it might turn out nastyyyyyyy

or it might have a chemical reaction that can affect how it cooks

Explanation:

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An aquarium for tropical fish must maintain a warm temperature. How would a decrease in temperature affect the fish in the aquar
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6 0
3 years ago
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An isotope has an atomic number of 8 and an atomic mass number of 18. How many neutrons does it have?
Paul [167]
The atomic number of an isotope is the number of protons it contains, whereas the mass number is the total mass of the nucleus, which is the combined number of protons and neutrons in the nucleus. To find the number of neutrons, you must therefore subtract the atomic number of the isotope from the mass number of the isotope. 
<span>In the above example, the atomic number is 8 and the mass number is 18. This isotope is known as O18. The number of neutrons in the isotope is: Mass number - Atomic number = Number of neutrons




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4 0
3 years ago
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Imagine that five hypothetical genes are arranged on a chromosome in the following order: G--H--I--J--K. Which two genes are mos
andrezito [222]

Answer:

G and K

Explanation:

Crossing-over is a genetic phenomenon that occurs in meiosis, specifically, Prophase I. It is when chromosomal segment (genes) are exchanged between non-sister chromatids of homologous chromosomes. Crossing-over occurs only to genes that are UNLINKED i.e. genes located on different chromosomes or far apart on the same chromosome.

This unlinked genes are said to have the highest RECOMBINATION FREQUENCY. Crossing-over allows genes on the same chromosome but far apart from each other, assort independently, which allows alleles to be recombined on the same chromosome. This phenomenon does not occur to genes that are close on the same chromosome as they will be inherited together as a unit.

In this case, G and K are the farthest apart, hence, they will have the highest RECOMBINATION FREQUENCY i.e. the likelihood for homologous crossing-over to take place during meiosis.

4 0
3 years ago
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