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2 years ago

As greenhouse gas concentrations increase across the globe in our atmosphere, we are observing

Biology

1 answer:

Triss [41]2 years ago

7 0

Answer:

below

Explanation:

Greenhouse gas increases will cause an increase in desert areas on Earth. Current desert areas will grow as

temperatures cause increased evaporation. Humans will migrate away from these areas of low water and

productivity

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What happens during the initiation step of DNA transcription? A ribosome attaches to the initiation codon of a completed mRNA st

Amanda [17]

Answer:

A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.

Explanation:

Transcription is the process in which DNA template is used to synthesize mRNA.

There are three steps of transcription:

Initiation

It is the process in which a portion of DNA unwinds and RNA polymerase binds to the promotor region on the DNA.

Elongation

It is the process in which RNA polymerase moves along the DNA template and synthesizes mRNA. During this process, unwinding of double stranded DNA takes place.

Termination

As the RNA polymerase moves along the DNA template, it finally reaches a termination signal and then stops synthesizing. It is followed by the detachment of the newly formed mRNA and RNA polymerase from the DNA.

QUESTION:

A ribosome attaches to the initiation codon of a completed mRNA strand.

This is the incorrect answer choice as this process does not happen in the process of transcription. This event happens in the process of translation in which mRNA is used to synthesize proteins or amino acids. mRNA attaches to ribosome during this process.

RNA polymerase moves along the template strand of the DNA creating an mRNA strand.

This is the incorrect answer choice as this event takes place in the process of elongation.

A portion of the DNA unwinds and RNA polymerase attaches to the DNA within the transcription bubble.

This is the correct answer choice as this event takes place in the process of initiation of transcription

The mRNA detaches from the RNA polymerase as the RNA polymerase leaves the DNA strand.

This is the incorrect answer choice. This event takes place in the event of termination of transcription.

3 0

3 years ago

Anyone preparing for neet? how to score 630 in neet

Nadusha1986 [10]

Answer:

im not but i would love to

Explanation:

so tell me in the comments how would you prepare for neet

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3 years ago

The mineral crystals in obsidian are too small to see without a microscope. This is because it _____.

Serjik [45]

The mineral crystals in obsidian are too small to see without a microscope. This is because the rock cools so rapidly from magma that crystals barely have time to form. Obsidian is a normally happening volcanic glass framed as an extrusive molten shake. It is delivered when felsic magma expelled from a well of lava cools quickly with negligible precious stone development.

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3 years ago

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Which statement(s) are true about mutations? (select all that apply)

makkiz [27]

C. they are always heritable. b. they are inly heritable in gametes

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3 years ago

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Which best describes a person's carbon footprint?

hoa [83]

A. The amount of carbon dioxide a person releases into the atmosphere

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3 years ago