DNA and Protein Synthesis

Front

Which base pairings normally occur during DNA replication?

A – adenine

C – cytosine

G – guanine

T – thymine

Back

Adenine pairs with thymine. Cytosine pairs with guanine.

Front

What directly determines the instructions for the genetic traits of an organism?

Back

sequence of bases in DNA molecules

Front

In a DNA sample, 15% of the bases are thymine (T). What percentage of the bases in this sample are adenine (A)?

Back

15%

Front

Which statement is an accurate description of genes?

Back

Genes are made of DNA and code for proteins.

Front

Why is it necessary for onion cells to contain chromosomes?

Back

are composed of genes that contain the instructions for an organism’s traits

Front

Why do plants kept in darkness appear white?

Back

Light is required for chlorophyll genes to be expressed.

Front

When provided with a sequence of bases in one segment of mRNA, the Universal Genetic Code Chart is used to

Options: directly identify the DNA from an animal cell, determine the sequence of amino acids in a protein, change the RNA sequence of a protein into DNA, identify the specific mutations in the genetic material in a cell

Back

determine the sequence of amino acids in a protein

Front

The expression of a trait is directly dependent on

Back

arrangement of amino acids in the protein

synthesized

Front

DNA is able to control cellular activities most directly by regulating the process of:

meiotic division

,

protein synthesis

,

active transport

,

selective breeding

Back

protein synthesis

Front

In a cell, protein synthesis is the primary function of?

Back

ribosomes