WorksheetsPBS Unit 3 Review
Total questions: 17
Worksheet time: 3hrs 7mins
Which of the following is NOT a part of blood?
Red blood cells
White blood cells
Plasma
Protein
These blood cells carry oxygen, carbon dioxide, and enzymes through the bloodstream.
Red blood cells
White blood cellss
Plasma
What part of the red blood cell binds to oxygen?
Hemoglobin
Protein
Plasma
How many letters make up codons?
3
2
4
1
The nucleotide T is replaced by what letter in RNA?
U
H
A
G
What is the only start codon?
AUG
GUC
CGU
UGG
Select TWO ways DNA mutations can occur.
Environmental
DNA fails to copy correctly
Scientists changed it
Mother had poor diet
When DNA replaces one nucleotide for another (G for an A), what type of mutation has occurred?
Substitution
Deletion
Insertion
When DNA gets rid of one or more nucleotides it is called what kind of mutation?
Deletion
Substitution
Insertion
When DNA adds nucleotides it is called what type of mutation?
Deletion
Substitution
Insertion
Is this genotype homozygous or heterozygous?
Gg
Heterozygous
Homozygous
How many chromosomes do you get from each parent?
23
24
46
28
What is the complementary mRNA strand to: GTCAAC
CAGTTG
GTCAAC
CAGUUG
GUCAAC
Which is the correct sequence for protein synthesis?
protein --> DNA --> RNA
RNA --> DNA --> protein
DNA --> RNA --> protein
RNA --> protein --> DNA
A person inherits one mutated copy of an allele and expresses a disease. This disease must be:
dominant
recessive
homozygous
homologous
What sex has an X and a Y chromosome?
male
female
