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Biology 10 Chapter 15
Inheritance - 6
1.
Which of the following special character control the expressions of a trait in an organison?
DNA
Chromosomes
Genes
Nucleus
2.
Which plant Mendel selected to perform his experiments?
Rosa Indicia
Pisum sativam
Avena sativa
Lycopersicum esculentum
3.
An organism for genetic experiment should have following features?
Contrasting traits
Self fertilization and cross fertilization
Number of different traits
All answers
4.
The term “true breeding” represent the?
Heterozygous
Cross fertilizing
Homozygous
Self Fertilizing
5.
A cross in which only one trait is studied is called as?
Self fertilization
Monohy brid cross
Dihy brid cross
Cross fertilization
6.
How many pea plants are user by mandel for his experiments?
280000
38000
28000
29000
7.
In organisms the genes are present as?
Single
Pairs
Boarded
Separate
8.
Different traits are inherited differently from each other. This is called?
Darwin’s theory
Law of genetics
Law of segregation
Law of independent assortment
9.
In which condition two different alleles of a gene pair express themselves completely?
Incomplete dominance
Complete dominance
Partial dominance
Codominance
10.
In which type of dominance heterozygous organism shows a phenotype which is different from both homozygous parents?
Codominance
Complete dominance
Partial dominance
Incomplete dominance
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