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WorksheetsMutations and Meiosis
Total questions: 18
Worksheet time: 13mins
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
Point Mutation - Missense
Insertion Mutation- Frameshift
Point Mutation- Nonsense
Point Mutation- Silent
Point Mutation- Frameshift
ATT-TGA-GCC- Original
ATT-GAG-CC - Mutated
The example above is an example of a
Insertion- Frameshift
Deletion- Substitution
Deletion -Frameshift
Point- Nonsense
Which of the following represents chromosome # during fertilization?
n+n=2n
2n+2n = 4n
2n=n+n
2n-n = n
Sex cells of fruit flies contain 16 chromosomes. How many are in the body cells?
16 chromosomes
8 chromosomes
32 chromosomes
4 chromosomes
Body cells are ________________ that means they have __________________ chromosomes
haploid; 46
diploid; 46
haploid; 23
The Fusion of an egg and sperm cell is called
mitosis
Meiosis
fertilization
The function of MEIOSIS is to:
produce copies of cells
replace worn out cells
create sperm and egg cells
make new body cells
The end result of MEIOSIS is:
2 identical daughter cells
2 different daughter cells
4 identical daughter cells
4 different daughter cells
Crossing over increases
genetic variation
the frequency of division
the number of chromosomes
the number of daughter cells produced
What type of mutation occurs when a SINGLE base is exchanged for another?
Point/Substitution
Insertion/Frameshift
Inversion
Translocation
If a person had "XY" chromosomes, their gender would be:
male
female
cannot be determined
CAC-GTG-ACA-GCG
A protein has 18 nucleotides. A frameshift mutation occurs after the 7th nucleotide. How many amino acids ARE affected?
7
3
6
4
2
True or False: All chromosomes cross over during meiosis
True
False
