Traits
Trending Questions
Q.
Name two human traits that show variation.
Q. If tall is dominant over short, then which of the following character will be expressed when both the dominant allele and recessive allele are present?
- Short
- Medium height
- It is random
- Tall
Q. How many different types of gametes will be formed by a pea plant with genotype TtYy?
- 16
- 08
- 06
- 04
Q. The principal taxon ranking above species and below family, represented in Latin is ____.
- order
- phylum
- genus
- class
Q. Pair the organisms with the group they belong to.
- Seaweed
- Lactobacillus
- Protozoa
- Fungi
- Bacteria
- Mushroom
- Algae
- Amoeba
Q. A dwarf pea plant was treated with GA. The plant became tall. The treated plant was then crossed with a homozygous tall pea. The results in F2 are expected to be
- All tall
- Tall and dwarf in 3 : 1 ratio
- 50% tall
- All dwarf
Q. Five Mark Questions :
(a) Explain a monohybrid cross taking seed coat colour as a trait in Pisum Sativum. Work out the cross upto F2 generation.
(b) State the laws of inheritance that can be derived from such a cross.
(c) How is phenotypic ratio of F2 generation different in a dihybrid cross?
(a) Explain a monohybrid cross taking seed coat colour as a trait in Pisum Sativum. Work out the cross upto F2 generation.
(b) State the laws of inheritance that can be derived from such a cross.
(c) How is phenotypic ratio of F2 generation different in a dihybrid cross?