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WorksheetsDNA and Protein Synthesis Mod
Total questions: 22
Worksheet time: 11mins
How does DNA help organisms stay alive? The order of ____________in DNA decides the order of _________. This helps make proteins for living.
nucleotide; amino acids
amino acids; nucleotides
nucleotides; nothing
What are the steps that determine the expression of traits in an organism?
RNA ----> DNA- ----> protein ----> heritable trait
DNA ----> RNA ----> protein ----> heritable trait
RNA ----> DNA ----> heritable trait ----> Protein
A mutation in DNA that does not change the function of the protein it makes. One mutation still creates the same codon. This is a ____________mutation.
Point
Silent
Missense
Beneficial
There are different cell types in humans. These cell types have the same genes. Why do they look different?
DNA sequences are different
the cell expresses different genes in the DNA sequence
Transcription and translation is different in every cell
What do you call a segment of DNA?
A protein
A double helix
A gene
What is the structure of DNA?
double helix
contains adenine-uracil pairs
sugar-nitrogen backbone
A DNA molecule has 32 thymine (T) bases. How many adenine (A) bases does it have?
16
64
32
A mutation can come from______. This can affect the organism and change hot it makes ______/
ATP; hydrogen bonds
Chemicals from industry; carbohydrates
radiation from the sun; protiens
The turning on and off of genes to control or regulate the amount of protein made is called
size
location
gene regulation
RNA is...?
double-stranded
contains bases A, T, C, G
contains bases A, U, C, G
Which organisms can be affected by DNA mutations?
ONLY Humans
ONLY Bacteria
ONLY Plants
all of the above
Which is correct for DNA?
Thymine and Uracil (T-U)
Thymine and Adenine (T-A)
Thymine and Cytosine (T-C)
In eukaryotic cells, DNA is found in the
endoplasmic reticulum
plasma membrane
nucleus
What influences the function of a protein?
The type of sugar in the mRNA.
The size, shape, and folding of the protein.
The type of ribosome.
When a mutation in the DNA code affects an organism, it will most likely affect the
the protein produced
rate of cellular respiration
cytoplasm of the cell
What does a codon of mRNA represent
a protein
a nucleic acid
a single amino acid
X-rays, UV light, and radioactive substances can change DNA. They are called
growth hormones
enzymes
mutagens
proteins
Which is the order from largest to smallest.
cell, nucleus, chromosome, gene, nucleotide
cell, nucleotide, nucleus, gene, chromosome
nucleotide, chromosome, cell, gene, nucleus
______ cells store DNA in the nucleus
prokaryotes
eukaryotes
both
DNA and RNA are which type of macromolecule
lipid
protein
nucleic acid
carbohydrate
DNA replication results in...
one molecule of DNA
two strands of DNA with different gene sequences
two strands of DNA with the same gene sequences.
One molecule of DNA with different gene sequences
Lactase helps you digest milk. Some people are lactose intolerant. They cannont make lactase. Why? the gene for lactase has a mutation that causes....
a person loses all ribosomes so they cannot make protein
a change in the amino acid sequence that makes the wrong protein
too much enzyme to be produced.
