Biology Test - 68

When analysis of the draft human genome sequence was published by the International Human Genome Sequencing Consortium on February 15, 2001, the paper estimated only about 30,000 to 40,000 protein-coding genes, much lower than previous estimates of about 100,000

• The largest animal on the earth is Blue whale. Blue whales have long body and they weigh very much.
• It has very long tail where, 50 members can stand on it. It heart is small as car.
• There growth rate is very fast and baby weighs more than an elephant.
• In 7 months, a baby blue whale drinks 190 litres of milk per day. Baby whale also highest weight and height.

the blood type that is referred to as the"Universal Donor" is O negative, not O positive. Antigens are proteins (or glycoproteins) on the surface of red blood cells that can react with the recipient's immune system in such a way that the recipient would be harmed.

The fruit of a dehiscent plant splits open when it is ripe to disperse seeds. Examples are peas, beans, peanuts, and magnolias. Technically, a banana is an herb.

A chromosome having sub-terminal centromere is called Acrocentric. It having the centromere situated so that one chromosomal arm is much shorter than the other. Down syndrome is caused by an extra acrocentric chromosome.

G banding, or Giemsa banding is a technique used in cytogenetics to produce a visible karyotype by staining condensed chromosomes. It is useful for identifying genetic diseases through the photographic representation of the entire chromosome complement.

About 70 muscles are involved in speaking. These are located in several parts of the head, neck, and mouth.

A banana plant belongs to a group of large monocotyledonous tropical herbs.

The scientist who popularised the concept of biodiversity is Prof. E.O. Wilson of Harvard University. His book 'Biological Diversity' , written in 1992 for mass audience, was read by tens of millions of people. It helped in creating awareness.