Which one of the following Mendelian trait controlling unit is expressed in homozygous condition only?
1. Axial flower
2. Yellow seed
3. Yellow pod
4. Smooth seed
Which of the given traits of pea selected by Mendel during the hybridization experiment on pea can be expressed in both homozygous as well as heterozygous conditions?
(1) Round seed
(2) Green seed
(3) White flower
(4) Terminal flower
“Filial 1 progeny” refers to
(1) First pure breed
(2) First offspring
(3) First hybrid generation
(4) Second hybrid generation
The F1 progeny in monohybrid crosses by Mendel resembled:
1. The parent exhibiting dominant trait completely
2. The parent exhibiting recessive trait completely
3. The parent exhibiting dominant trait partly
4. The parent exhibiting recessive trait partly
In Mendel’s experiments, the contrasting traits did not show any blending in:
1. stage
2. stage
3. Both and stages
4. The statement is false as blending was seen at all stages
Trait expressed in F1 generation is
(1) Parental
(2) Recessive
(3) Dominant
(4) Recombinant
An organism with two copies of the same allele is:
(1) Homozygous for that trait
(2) Homologous for the allele
(3) Heterozygous for that trait
(4) Heterologous for the allele
Genes which code for a pair of contrasting traits or slightly different forms of the same gene are known as:
1.Alleles
2. Loci
3. Cistrons
4. Introns
Which of the following traits in the garden pea plant would express itself only in homozygous condition?
1. Violet flower color
2. Terminal flower position
3. Green pod color
4. Yellow seed color
Indentify the incorrect statement:
1. Tall plant produce gametes by meiosis and the dwarf plants by mitosis.
2. Only one allele is transmitted to a gamete.
3. The segregation of alleles is a random process.
4. Gametes will always be pure for the trait.