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enyata [817]
3 years ago
9

Transcription occurs along a ____ template forming an mRNA in the ____ direction. (0.5 pts.) A) 5' to 3'; 5' to 3' B) 5' to 3';

3' to 5' C) 3' to 5'; 5' to 3' D) 3' to 5'; 3' to 5'
Biology
2 answers:
ra1l [238]3 years ago
8 0

Answer:

3' to 5'; 5' to 3'

Explanation:

The DNA strand with 3' to 5' polarity serves as a template for the process of transcription. Using the 3' to 5' DNA template strand, the enzyme RNA polymerase catalyzes the formation of RNA.  The ribonucleotides are bonded together by phosphodiester bonds that are formed in 5' to 3' direction only. The formation of RNA occurs in 5' to 3' direction. The DNA template strand has a complementary nucleotide sequence to the newly synthesized RNA.

Paraphin [41]3 years ago
6 0

Answer: Option C.

Transcription occur along 3' to 5' and direction 5' to 3'.

Explanation:

Transcription is a process where a DNA gene sequence is been copied to an RNA sequence by an enzyme RNA polymerase. During transcription the DNA serve as a template complementary base pairing along 3' to 5' to make RNA molecule where RNA polymerase 11 catalyse the formation of mRNA at 5' to 3' direction.

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We know that purebred means that the organism contains the same alleles for the trait and hybrid means that it contains two different alleles for the trait. Dominant means that it will be shown in a hybrid and a purebred, but recessive traits will only be shown in purebred recessive organisms.

a) The offspring of a purebred white (recessive) cow and a purebred brown (dominant) bull, would be all hybrid brown (dominant). This is because as I stated above, dominant traits are shown when the offspring has both dominant and recessive alleles for the same trait.

b) The offspring of a purebred brown (dominant) cow and a purebred brown (dominant) bull would all be purebred brown (dominant). This is because if both of the parents have only alleles that code for brown color, the only color that the offspring can be is brown.

c) The offspring of a purebred white (recessive) cow and a purebred white (recessive ) bull would all be purebred white (recessive), for the same reason stated above in part b), the only difference being that the alleles are recessive and code for white color instead of being dominant and coding for brown color.

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