Plant Water Relation — BIOLOGY STD 12 Science — Question

Human protein produced by r-DNA technology to treat antherosclerosis.

How do we compute the age of a fossil?

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. Name the type of cross.

What is the role of Wernicke’s area?

Mention the role of DNA polymerase other than polymerising deoxyribonucleotides during DNA synthesis?

Name the respective pattern of inheritance, where F, phenotype:

1. Does not resemble either of the two parents and is in between the two;
2. Resembles only one of the two parents.

How many primary spermatocytes and oocytes are required for the formation of 100 spermatozoa and ova?

What is a synaptic cleft?

How is Addison’s disease caused?

Give two examples of extinction caused by indiscriminate hunting.