Before proposing his theory, Mendel:
A.Had no idea of factors and genes
B.Had idea that all the factors are carried by genes
C.Had idea of chromoscmes but not the genes
D.Had no idea of chromosomes and genes
Category: Basic Genetics Mcqs
Examples of non-allelic gene interaction are:
A.Complementary genes
B.Supplementary genes
C.Modifier genes
D.All of these
If F1 generation of a cross between tall and dwarf plants is of tall plants, it indicates the character to be:
A.Dominant
B.Recessive
C.Mutant
D.Sex linked
A true breeding tall pea plant when crossed with a true breeding dwarf plant yielded tall plants in F1 generation which on selfing gives rise to 787 tall and 277 dwarf plant in F2 generation. The plants of F1 generation are:
A.Homozygous
B.Heterozygous
C.Hemizygous
D.None of these
The contrasting characters of individuals are represented by unit factors which separate at the time of gamete formation is explained by Meddel’s law of:
A.Dominance and Recessiveness
B.Segregation
C.Independent Assortment
D.None of these
Who claimed to observe a mini form of man inside the sperm?
A.Hertsoeker
B.Bateson
C.Weismann
D.Pythagorus
In a gene interaction the gene that masks the expression of another gene is termed:
A.Epistatic gene
B.Hypostatic gene
C.Both (a) & (b)
D.None of these
Genetics is a branch of biology, which deals with:
A.Laws of heredity and variations
B.Process of cell division at gametogenesis
C.Formation of new species through natural selection
D.None of these
Vapour theory of inheritance was put forward by:
A.Pythgorus
B.Aristotle
C.Graaf
D.None of these
Law of dominance states that:
A.Out of the two unit factors of contrasting expression of a trait present in an individual only one is expressed
B.Characters of parents are assorted independently during the gamete formation
C.Contrasting characters of parents are segregated at the time of gametogenesis
D.None of these things
