Question

base your answers to 6-8 on the diagram which represents a biochemical process in a cell.

1. the organelle labeled z represents a: 1

(1) ribosome (3) mitochondrion
(2) vacuole (4) nucleus

1. a change in the region labeled y from u-c-g to u-g-c would

most likely cause: 1
(1) the synthesis of a different protein
(2) a mutation
(3) the formation of recombinant mrna
(4) a change in the dna template

1. the process shown to the left represents: 1

(1) replication (3) protein synthesis
(2) ribosome (4) mitosis

Explanation:

Question 6

The diagram shows a biochemical process (likely translation) where Z is an organelle involved in protein synthesis. Ribosomes are the sites of translation (protein synthesis), vacuoles store substances, mitochondria produce energy, and the nucleus contains DNA. So Z is a ribosome.

Region Y is part of mRNA (has U, C, G). A change in mRNA codon (U - C - G to U - G - C) changes the codon, which codes for a different amino acid (since each codon codes for one amino acid), leading to a different protein synthesis. A mutation is a change in DNA, this is an mRNA change (not DNA), recombinant mRNA isn't formed here, and DNA template isn't changed.

The left process (with tRNA, mRNA, amino acids, ribosome) is translation, which is part of protein synthesis. Replication is DNA copying, ribosome is an organelle, mitosis is cell division. So the process is protein synthesis.

Answer:

(1) ribosome

Question 7