NEW
Font size
WorksheetsPrinciples of Inheritance & Variation- Quiz 5
Total questions: 10
Worksheet time: 4mins
A gene may have many alleles, but each individual has only two alleles because
having more than two alleles is lethal.
having more than two alleles unbalances the chromosomes.
a person has two parents who each contribute one allele.
a backup set of alleles is necessary in case something goes wrong.
Mendel’s laws are explained by
chromosome behaviour in mitosis.
chromosome behaviour in meiosis.
cytokinesis in mitosis and meiosis.
Mendel’s laws have not been explained.
A mother who is blood type AB has a child who is also AB. A potential father is blood type O. A well-informed geneticist concludes that __________.
he cannot be the father
the mother of the child is not genetical mother.
he is very likely to be the father
he or any other male of blood type O could be the father
Why didn’t Mendel find linkage?
Some genes were linked, but they were too close together to cross over.
All seven genes were on separate chromosomes.
Mendel did detect linkage. He discovered this genetic phenomenon.
Some genes were linked, but they were too far apart for crossing over to be distinguished from independent assortment, or linked genes were never tested for at the same time in the same cross.
Genes A and B are farther apart than are genes A and C, and all three are linked. What CANNOT be concluded?
B might be between A and C
C might be between A and B
A might be between B and C
More crossovers will occur between A & B than between A & C
Which Mendelian idea is depicted by a cross in which the F1 generation resembles both the parents ?
Law of dominance
Inheritance of one gene
Co-dominance
Incomplete dominance
or finding the different types of gametes produced by genotype AaBb, it should be crossed with genotype –
AABB
aabb
AaBb
aaBB
What should be the composition of gametes?
GgLl
Ggl
Gg
Gl
Fruit colour in squash is an example of :-
Recessive epistasis
Dominant epistasis
Complementary genes
Inhibitory genes
Anish is having colour-blindness and married to Sheela, who is not colour-blind. What is the chance that their son will have the disease?
100%
50%
25%
0%
