Human Reproduction — BIOLOGY STD 12 Science — Question

In a cross between two tall pea plants, some of the offsprings produced were dwarf. Show with the help of Punnett square how this is possible.

A cross was carried out between two pea plants showing the contrasting traits of height of the plant. The result of the cross showed 50% of parental characters

1. Work out the cross with the help of a Punnett square.
2. Name the type of the cross carried out.

List the differences between Turner's syndrome and Klinefelter's syndrome.

The Human Genome Project (HGP) was a grand scheme which was started in 1990 for some important objectives.
(a) List any four major objectives of HGP.
(b) Write the name of any one common animal model other than humans which was sequenced over time.

Explain briefly:
Restriction enzymes and DNA

Write the causative agent of filariasis in humans. Mention its mode of transmission and symptoms of the disease.
OR

1. Write the scientific names of the two species of filarial worms causing filariasis.
2. How do they affect the body of infected persons?

Why does a patient of ADA-deficiency require repeated infusion of genetically engineered lymphocytes? Suggest a possible permanent remedy.

What measure would you take to prevent water-borne diseases?

What is menstrual cycle? Which hormones regulate menstrual cycle?