At the official announcement of completion of the draft human genome (choose all that apply)

Biology

1 answer:

In-s [12.5K]3 years ago

7 0

Answer:

(B) Two alternative strategies were used to complete the genome - top down and bottom up
(C) The public project used a mapping strategy to limit the total sequencing required
(D) The Celera group, led by Craig Venter, used a shot gun sequencing strategy

Explanation:

As the project was unable to sequence all the DNA that was found in the human cells, the first draft was made in June and complete in the end referred to as a working draft and made on the basis of the final sequencing and mapping of the human genome.

The draft included the alternative strategies for the completion of the bottom up and top up of the genome code and has a mapping strategy that limited the total sequencing needs.

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A valley glacier spreads out over a large island or continent.

Yakvenalex [24]

Answer: False

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Damm [24]

Answer:

B, A, D, C

Explanation:

Deletion - loss of part of the DNA chromosome

Duplication - extra copy made of part of the chromosome

Inversion - reverses direction of the chromosome

Translocation - part of one chromosome attaches to another chromosome

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Cell membrane is fully permeable true or false

Pepsi [2]

Answer:

False.

Explanation:

Cell membrane is selectively permeable.

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What change occurs to the pressure and volume of the lungs when the external intercostal muscles contract?

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C. pressure decreases and volume increases

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The theory says that the big bang produced the chemical elements hydrogen and helium. What evidence supports this?

mamaluj [8]

The big bang is a bit complicated.

Now, Kurzgesagt does an amazing video on this (and yes, I know mods dont like links very much) : https://www.youtube.com/watch?v=wNDGgL73ihY

I will explain as best I can. So, lets assume that the big bang theory actually happened for right now before any debates arise. First of all, we have no clue what even started it. There are so many theories as to why it started and was their a universe before the big bang.

Now, this is the interesting part. Every universe has its own laws. We have four laws or forces in ours that we know of (and then we have quantum physics which completely messes with physics but we wont get into that).

The Force of Gravity

The Strong Force

The Weak Force

The Electromagnetic Force

We have no clue if there are any other universes and if they are, do they have different properties. If so, chemical bonding could be completely different.

So much could be different.

Now, we know there are also some laws like conservation of energy and law of balance. Balance is what made the universe. Atoms had to find their "mate" lets just say and create chemicals. These chemicals would then go on to bind more and more and create other things over time as the universe was also expanding.

The universe is still expanding (and even accelerating its expansion).

Things must be chemically stable and thats how bonds are formed.

Now, this also kinda opens up "why" and science does not always answer "why". Thats more for religion or philosophy.

Its very interesting and I suggest you look into the video I linked.

Hope this helps

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