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?

“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:

In Mendel’s experiments, the contrasting traits did not show any blending in:
1. ${\mathrm{F}}_1$ stage
2. ${\mathrm{F}}_2$ stage
3. Both ${\mathrm{F}}_1$ and ${\mathrm{F}}_2$ 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:

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.