Human Reproduction — BIOLOGY STD 12 Science — Question

Species that can tolerate narrow range of temperature are called ________.

What do you mean by emigration?

Which one of the following statements is true of Cucurbits?

1. It is monoecious producing both staminate and pistillate flowers in the same plant.
2. It is monoecious producing staminate and pistillate flowers in two different plants.
3. It is dioecious producing staminate flowers in one plant and pistillate flowers in another.

Name two major practices included in animal husbandry.

What characteristics are found in flowers- Pollinated by wind or anemophillous plants.

Name the material used as matrix in gel electrophoresis and mention its role.

Expand EFB?

Name two plants where remnants of nucellus can be found in seeds.

Sometimes cattle or even human beings give birth to their young ones that are having extremely different sets of organs like limbs/ position of eye(s) etc. Comment.

Mention the source of thermostable DNA ploymerase.