Name the phenomenon where the female gamete directly develops into a new organism with an avian example.

Which type of reproduction is effective -Asexual or sexual and why?

At what stage of development are the gametes formed in new born male and female?

How is polyspermy avoided in humans?

Placenta is an endocrine tissue. Justify

What is amniocentesis? Why a statutory ban is imposed on this technique?

Correct the following statements
a) Transfer of an ovum collected from donor into the fallopian tube is called ZIFT.
b) Transfering of an embryo with more than 8 blastomeres into uterus is called GIFT.
c) Multiload 375 is a hormone releasing IUD.

What is haplodiploidy?

What is Lyonisation?

Why are sex linked recessive characters more common in the male human beings?

Mention the symptoms of Phenylketonuria

Name the parts marked ‘A’ and ‘B’ in the given transcription unit:

Differentiate - Template strand and coding strand.

State any three goals of the human genome project.

List out the major gases seems to be found in the primitive earth.

Differentiate between divergent evolution and convergent evolution with one example for each.

Explain how mutations, natural selection and genetic drift affect Hardy Weinberg equilibrium.

Mention the main objections to Darwinism.

Name and explain the type of barriers which involve macrophages.

List out chemical alarm signals produced during inflammation.

How is milk converted into curd? Explain the process of curd formation

What is biological oxygen demand?

How is the amplification of a gene sample of interest carried out using PCR?

Explain how “Rosie” is different from a normal cow

ELISA is a technique based on the principles of antigen-antibody reactions. Can this technique be used in the molecular diagnosis of a genetic disorder such as Phenylketonuria?