WorksheetsEOC Cat 2 Mini Quiz 2
Total questions: 6
Worksheet time: 18mins
Mutations can be frameshift or point type. There are 2 types of frameshift mutations; insertion and deletion. An insertion mutation is when:
a nucleotide is deleted from a DNA sequence (CGG TAG is changed to CGT AG)
one nucleotide is substituted for another ( A GG is changed to CGG)
an extra nucleotide is added to a DNA sequence (ATT GC is changed to ATT TGC)
All mutations are harmful
True
False
Jim got a real bad sunburn that resulted in a mutation in his skin cells that may cause skin cancer as he ages. If Jim has children when he gets older, will his mutations be passed on to his children when they are born?
yes, skin cells are gametes (sex cells), so the mutated DNA will be passed to his future children.
no, the mutations were in somatic cells, so they only affect Jim...he should have put on sunscreen.
The allele for purple flowers (B) is dominant over the allele for white flowers (b). If a heterozygous male (Bb) mates with a heterozygous female (Bb), what is the probability of having white flower homozygous recessive (bb) offspring?
1 chance in 4 (25%)
2 chances in 4 (50%)
0 chances in 4 (0%)
In humans, there are 4 blood types: A, B, AB and O. Alleles for type A and B are equally dominant, thus both traits can be expressed simultaneously (blood type AB). This is an example of:
incomplete dominance
sex linked traits
heredity
codominance
Meiosis begins with 1 diploid (2n) cell and results in __ ________ __ genetically different cells known as gametes (ex: eggs or sperm cells)
2 diploid (2n)
4 haploid (n)
4 diploid (2n)
2 haploid (n)
