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WorksheetsPretake Practice Part 2: DNA, Cell Cycle, Protein Synthesis
Total questions: 20
Worksheet time: 10mins
DNA is essential to organisms because it...
carries the genetic code
speeds up chemical reactions
prompts the immune respones
controls cellular transport
How is the structure of a DNA molecule described by scientists?
circle
double helix
twisted loop
straight ladder
A student used a microscope to examine some cells. He observed strands located in the nuclei of these cells. These strands are responsible for coding different proteins and are known as...
chromosomes
mitochondria
ribosomes
chloroplasts
The genome of a goldfish contains 96 chromosomes. How many chromosomes will each daughter cell have after mitosis of a goldfish cell is complete?
24
48
96
192
A carrot cell contains 18 chromosomes. What is the correct number of chromosomes that would be found in the new cells produced after mitosis?
9
18
36
54
In the synthesis phase (S Phase) of the cell cycle, a body cell copies its DNA. This DNA replication occurs in preparation for which of the following processes?
cellular respiration
mitosis
facilitated diffusion
translation
As humans grow, their bodies change. Which of these statements explains how humans grow?
cells form a cell wall
cells undergo cell division
cells increase in size
cells merge to become larger
Which of these describes the purpose of the cellular process pictured
to combine two daughter cells
to make a chain of identical amino acids
to produce an identical copy of a cell
to form daughter cells with half the number of chromosomes
Proteins are large macromolecules composed of thousands of subunits. The structure of the protein depends on the sequence of...
lipids
amino acids
monosaccharides
nucleotides
Which statement explains the relationship that exists among proteins, DNA, and cells
proteins combine to produce cells, which produce DNA
Proteins are made up of DNA, which determines the cells that are produced
DNA is made up of proteins, which tell a cell how to function
Cells contain DNA, which controls the production of proteins
Which of the following words means "to make or copy DNA"
I. Synthesize DNA
II. Production of DNA
III. Replication of DNA
I only
I and II
III only
I, II, and III
Transfer RNA molecules pick up amino acids floating in the cytoplasm and carry them to the...
mitochondria
nuclei
ribosome
chromosomes
The molecule represented by the lettered symbols shown is a...
nucleotide
codon
base pair
triplet code
Which is the correct identification of the parts of the DNA nucleotide in the diagram shown
A = uracil, B = deoxyribose, C =thymine
A=phosphate, B=ribose, C=uracil
A=thymine, B=ribose, C=uracil
A=phosphate, B=deoxyribose, C=thymine
This diagram represents the process of protein synthesis. Which section of this diagram represents DNA?
1
2
3
4
This diagram represents the process of protein synthesis. Which section of this diagram represents amino acids?
1
2
3
4
This diagram represents the process of protein synthesis. If "2" represents the strand of mRNA, which codon brings the amino acid Proline?
GGA
TAC
CCU
CUG
If the diagram represent a part of the process of protein synthesis, strand A...
serves as a template for the synthesis of messenger RNA
carries a code determined by the original DNA molecule from the nucleus to the cytoplasm
picks up and transfers specific amino acids to the cytoplasm
picks up and transfers nucleic acids to the nucleus
During DNA replication a mutation can occur. At a checkpoint the mutation might...
I. be fixed
II. cause the cell die
III. get through unnoticed
I
I and II
I and III
I, II, and III
Mutations (mistakes) in the genetic code...
always have a negative impact on an organism
sometimes change the proteins produced by a cell
only impact the cell function if the sequence of amino acids remains the same
have no impact on the proteins produced by an organism
