During initiation of translation in prokaryotes, ________. Select one: a. the large subunit is the first part of the ribosome to
associate with the mRNA b. the initiator Met-tRNA.met binds to the A site of a ribosome c. the ribosomal small subunit binds to the 5' cap and then scans for the first AUG d. both 70S and 30S ribosome subunits must simultaneously recognize an mRNA to bind e. a sequence in the rRNA base pairs with a sequence in the mRNA to position a ribosome at the start codon
The correct answer is option e. "a sequence in the rRNA base pairs with a sequence in the mRNA to position a ribosome at the start codon".
Explanation:
During initiation of translation in prokaryotes, a sequence in the rRNA base pairs with a sequence in the mRNA to position a ribosome at the start codon. The sequence of the mRNA that base pairs with the sequence in the rRNA is called The Shine-Dalgarno sequence and is located at -7 to -4 of the translational start codon. The Shine-Dalgarno sequence is as follows "AGGAGG" and its complementary to part of the 3′ end of 16S rRNA. Once mRNA binds to the small subunit of the ribosome at the P site, translation initiates and the A site of the ribosome is opened.
Mountains are cooler than plains because with increase in height the temperature decreases. EXPLANATION: Mountains are located in high elevations and plains are located in low elevations. Their respective heights are measured by term called as their height above sea level.
The Principle of Independent Assortment illustrates how different genes individually separate from one another when reproductive cells receive.
Independent assortment of genes and their similar traits was first mentioned by Gregor Mendel in 1865 during his studies of genetics in pea plants.
When two or more characters are acquired, individual hereditary factors classify independently during gamete production, giving distinct traits an equal opportunity of befalling together.
