The Shine-Dalgarno sequence in bacteria .

a. is a pyrimidine-rich consensus sequence found in the 3' UTR of the mRNA
b. is a purine-rich consensus sequence found in the 5' UTR of the mRNA
c. is a purine-rich consensus sequence found in the 16S rRNA subunit
d. is a region of the tRNA molecule involved in formation of charged tRNAs
e. is a consensus sequence involved in the termination of translation

Option B

Explanation:

This sequence is a region on the found in the 5' UTR region on the mRNA that is composed of about 3-9 purine rich nucleotides. These forms complimentary bad pairs with the pyrimidine rich regions on the 16S ribosomal RNA of the 30S small subunit initiating translation in the bacteria

sexual reproduction produces offspring with novel combinations of genes. species that reproduce sexually must maintain two different types of individuals, males and females, which can limit the ability to colonize new habitats as both sexes must be present.

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