Question
When is a recessive trait able to show up?
✓
Answer
Recessive trait is expressed only when the recessive alleles are present in a homozygous condition, i.e. that the individual has both the alleles as recessive alleles.
When di-Hybrid cross is conducted between two heterozygous parents with contrasting traits then it produces offspring which are 3 dominant and 1 recessive.
Tt × Tt = TT, Tt, Tt, tt
the ratio would be - 1 : 2 : 1
When di-Hybrid cross is conducted between two heterozygous parents with contrasting traits then it produces offspring which are 3 dominant and 1 recessive.
Tt × Tt = TT, Tt, Tt, tt
the ratio would be - 1 : 2 : 1
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
State any four characteristics of the image of an object formed by a plane mirror.
How much energy is given to each coulomb of charge passing through a 6 V battery?
Differentiate between lymphatic capillaries and blood capillaries.
Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is $3 \times 10^8 m s ^{-1}$.
→What is the importance in India of hydropower plants? Describe how electric energy is generated in such plants.
Draw the structures for the following compounds:
- Ethanal.
- Propanal.
- Butanal.
- Pentanal.
The diagrams show the appearance of a fork when placed in front of and close to two mirrors A and B, turn by turn.
- Which mirror is convex.
- Which mirror is concave.
Which among the males and females are homogametic?
What is the role of hydrochloric acid in our stomach?
Why can you not use a concave mirror as a rear-view mirror in vehicles?