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WorksheetsUnit 5 Review
Total questions: 32
Worksheet time: 16mins
Which of the following is NOT part of a DNA nucleotide?
phosphate group
ribose
thymine
cytosine
Which type of macromolecule is responsible for storing genetic information?
proteins
carbohydrates
nucleic acids
lipids
Which of the following would NOT be part of an RNA nucleotide?
thymine
uracil
ribose
phosphate group
Only mutations in this cell could be passed onto offspring
brain cell
liver cell
sperm cell
heart cell
The process of DNA replication and protein synthesis both require the action of
mRNA
tRNA
rRNA
enzymes
DNA is a double stranded molecule. What is the complementary strand bonded to this DNA strand: CGATA?
CGATA
CGUAU
GCTAT
AGAUA
If a DNA strand is composed of 25% adenine, what percent would be thymine?
25%
50%
75%
100%
If a DNA strand is composed of 40% thymine, what percent would be guanine?
10%
20%
40%
80%
Environmental factors such as sunlight and temperature can affect the expression of genes.
True
False
This type of reproduction produces identical offspring
asexual
sexual
If an organism's body cells contain 20 chromosomes, how many would its gametes contain?
5
10
20
40
Which of the following processes restores the diploid number of chromosomes?
meiosis
cellular respiration
protein synthesis
fertilization
Which of the following is NOT a purpose of mitosis?
repair
growth
gamete formation
asexual reproduction
Which of the following is NOT true of meiosis?
produces 4 daughter cells
produces diploid daughter cells
produces haploid daughter cells
daughter cells have variation
How many RNA bases make up one codon?
1
2
3
4
The building blocks of proteins are
amino acids
nucleic acids
glucose
simple sugars
Which of the following contains proteins?
enzymes
cell membranes
ribosomes
all answers are correct
Which of the following must occur before either mitosis or meiosis can begin?
DNA is replicated
crossing over
ribosomes divide
the cell divides twice
Which of the following is NOT a type of mutation?
insertion
deletion
inversion
upside down crocodile
In which organelle does protein synthesis occur?
nucleus
ribosomes
lysosmes
mitochondria
Human body cells typically have _ chromosomes
23
46
92
12
Sexual reproduction requires fertilization to occur.
True
False
The largest amount of DNA in a plant cell is contained in a(n)
nucleus
chromosome
gene
enzyme
Within which structure of an animal cell does DNA replication take place?
cell membrane
ribosome
vacuole
nucleus
DNA is able to control cellular activities most directly by regulating the process of
active transport
protein synthesis
selective breeding
meiotic division
The process of genetic engineering alters an organisms
mitochondria
DNA
ribosomes
nuclear membrane
Bacteria will produce a human protein if the gene for that protein is inserted into the plasmid of a bacteria.
True
False
The process of choosing organisms with specific characteristics to reproduce is called
selective breeding
cloning
genetic engineering
DNA replication
This process producing offspring that are identical to the parent and each other
genetic engineering
selective breeding
DNA replication
cloning
Which of the following causes the DNA fragments in gel electrophoresis to move through the gel?
heat
pH
electric current
light
Which of the following is true of gel electrophoresis?
Large fragments travel the furthest
Large fragments travel the fastest
Small fragments travel the slowest
Small fragments travel the furthest
Which of the following may affect gene expression?
amount of light
temperature changes
presence of a hormone
all answers may affect gene expression
