Mutant allele that has little or no effect on the expression of a tart is known as_____________________?
A. Atavism
B. Auxotroph
C. Axoneme
D. Armor
Superiority of heterozygote in respect to one or more traits in comparison to corresponding homozygote is known as____________________?
Superiority of heterozygote in respect to one or more traits in comparison to corresponding homozygote is known as____________________?
A. Heterocyst
B. Hetropyenosis
C. Hypostasis
D. Epistastasis
Presence of slight differences in identical twins support the hypothesis that___________________?
Presence of slight differences in identical twins support the hypothesis that___________________?
A. Single gene may produce multiple effects
B. Dominance may be incomplete
C. The environment effects the expression of genetic character
D. Genetic trails are influence by many genes
If the haploid number of chromosomes in a plant is 12, then the number of chromosomes in monosmic is_________________?
If the haploid number of chromosomes in a plant is 12, then the number of chromosomes in monosmic is_________________?
A. 12
B. 24
C. 22
D. 23
In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?
In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?
A. Dominant lethal genes in heterozygous individuals
B. Dominant lethal genes in homozygous individuals
C. Dominant epistasis
D. None of the above
The organic evolution look place about__________________?
The organic evolution look place about__________________?
A. 100,000,000 years
B. 200,000,000 ears
C. 300,000,000 years
D. Still occurring
Which of the following had great influence on Drawing during during formulation of his theory of natural selection_________________?
Which of the following had great influence on Drawing during during formulation of his theory of natural selection_________________?
A. Lamark’s idea on inheritance of acquired character’s
B. Mathis’s essay on population
C. Mendes’s experiment on pea
D. De Vries theory of mutation
Hereditary variations in plants have been produced by the use of________________?
Hereditary variations in plants have been produced by the use of________________?
A. DDT
B. X-rays
C. Gibberrellic acid
D. Auxins
Red (RR) is crossed with white (ww). All the (Rw) offsprings are pink this is an indication that the R gene is_________________?
Red (RR) is crossed with white (ww). All the (Rw) offsprings are k this is an indication that the R gene is_________________?
A. Recessive
B. Incomplete dominant
C. Mutant
D. Dominant
haploids are better for mutation studies because in them all the mutations whether recessive or dominant are expressed as_______________?
haploids are better for mutation studies because in them all the mutations whether recessive or dominant are expressed as_______________?
A. There are many alleles of each gene in each call
B. There are two alleles of each gene in each cell
C. There is only one alleles of each gene present in each cell
D. Non3e4 of the above