Question
How is sex determined in human beings?
✓
Answer
Get the step-by-step solution for this question inside the Vidyadip app.
Get the answer in the appNeed 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
Explain spermatogenesis.
a. Describe the process of double fertilisation in angiosperms.
b. Trace the development of polyploidal cell that is formed after double fertilisation in a non-albuminous seed and albuminous seed.
b. Trace the development of polyploidal cell that is formed after double fertilisation in a non-albuminous seed and albuminous seed.
Mention their source and the function they perform:
hCG, LH, FSH, Relaxin.
hCG, LH, FSH, Relaxin.
List the harmful effects caused by alcohol/ drug abuse.
- With labelled diagrams, depict the stages in embryo development in a dicotyledonous plant.
- Endosperm development precedes embryo development. Why?
a. Draw the embryo sac of a flowering plant and label the following:
i. Central cell
ii. Chalazal end
iii. Synergids
b. Name the cell and explain the process it undergoes to develop into an embryo sac.
c. Explain the development of endosperm in coconut.
i. Central cell
ii. Chalazal end
iii. Synergids
b. Name the cell and explain the process it undergoes to develop into an embryo sac.
c. Explain the development of endosperm in coconut.
In 1952, Alfred Hershey and Martha Chase took an effort to find the genetic material in organisms. Their experiments led to an unequivocal proof to DNA as genetic material.
Answer the following questions based on Hershey and Chases's experiments:
i. Name the kind of virus they worked with and why?
ii. Why did they use two types of culture media to grow viruses in? Explain.
iii. What was the need for using a blender and later a centrifuge during their experiments? OR
iv. State the conclusion drawn by them after the experiments.
Answer the following questions based on Hershey and Chases's experiments:
i. Name the kind of virus they worked with and why?
ii. Why did they use two types of culture media to grow viruses in? Explain.
iii. What was the need for using a blender and later a centrifuge during their experiments? OR
iv. State the conclusion drawn by them after the experiments.
Differentiate between:
(a) Hypocotyl and Epicotyl
(b) Coleoptile and Coleorrhiza
(c) Integument and Testa
(d) Perisperm and Pericarp.
(a) Hypocotyl and Epicotyl
(b) Coleoptile and Coleorrhiza
(c) Integument and Testa
(d) Perisperm and Pericarp.
An individual and a population has certain characteristics. Name these attributes with definitions.
Explain the steps involved in a polypeptide synthesis. How are the amino acids activated during polypeptide synthesis?