How does budding occurs is hydra?

Describe the different phases of life cycle in an organism.

(i) Identify the animal
(ii) What is significant about the animal.

Give the definition for (a) Arrhenotoky (b) Thelytoky (c) Amphitoky

Explain briefly on the nature of Ovovivipary.

Differentiate between asexual and sexual reproduction

Complete the flow chart by mentioning the ploidy of cells in boxes.

What is the function of Sertoli cells?

What is Polycystic ovary syndrome (PCOS)?

In the diagram given below.

(a) Identify the diagram
(b) Label the parts indicated.

Compare gametogenesis with organogenesis.

Give an account on uterine wall layers.

What is embryo transfer technique?

Complete the table by filling the gaps.

Disease	Causative agent	Symptoms
Gonnorrhea	A	Affects urethra & cervix, painful urination
B	Human Immuno Virus	Enlarged lymph node, night sweat, weight reduction
Hepatitis	Hepatitis-B- Virus	C

Dr. Sheela is a famous Gynaecologist at Poes garden. However illegally she performed amniocentesis for several pregnant illiterates and did MTP if identified as female foetus, on request. Under which act will she get arrested, if a complaint is filed against her.

What is null allele?

What is sex Index?

What is the role of the gene responsible for colour blindness in a normal human beings?

What are Mendelian disorders?

Complete the following cross.
AAZW x AAZZ
(female) (male)

On analysis, a person's karyotype reveals an extra one chromosome of twenty-first pair. What does this condition represent? which type of symptoms can be noticed in the person?

Distinguish replication and transcription.

Why did the use of RNase not affect transformation in the experiment conducted by Avery et aI.

What are okazaki fragments?