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creativ13 [48]
3 years ago
7

Choose all that applies: New species of organisms may emerge if

Biology
1 answer:
matrenka [14]3 years ago
7 0

Answer:

b, d

Explanation:

a, may be right since mutaion does benefit species in certain ways but since it's specifically saying fatal the a is not right.

b, because even though it doesn't happen often, 2 diverse species might interbreed if a survival or specific situation is given.

d, natural selection kill of those weak and helps the strongest survive by making genetic modifications throughout the generations going from one species to a completely different one in years.

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Andre45 [30]

Answer:

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3 0
3 years ago
Which RNA sequence will result from the transcription of the DNA sequence AAT TTC CGA ATG GGA?
dsp73

Answer:

A. UUA AAG GCU UAC CCU

Explanation:

Transcription is the first process of Gene expression, which involves the synthesizing of a mRNA molecule from a DNA strand. This process (transcription) which is carried out or catalyzed by an enzyme called RNA polymerase, uses the complementary base pairing rule to synthesize nucleotides.

The complementary base pairing rule as proposed by Chargaff states that Adenine base (A) should bond with Thymine base (T). Likewise for Guanine (G) and Cytosine (C). Hence, in a DNA strand with sequence: AAT TTC CGA ATG GGA, the following RNA will result:

UUA AAG GCU UAC CCU.

Note that, Uracil base replaced Thymine base in the mRNA molecule.

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AAT TTC CGA ATG GGA ---------- DNA

UUA AAG GCU UAC CCU --------- RNA

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