Q:
'Barr body' is found in

a
Female somatic cells
b
Sertoli cells
c
Sperm
d
Male somatic cells
Answer : Option A
Explanation :
Female somatic cells.A Barr body is the inactive X chromosome in a female somatic cell in those species in which sex is determined by the presence of the Y or W chromosome rather than the diploidy of the X or Z. A typical human female has only one Barr body per somatic cell, while a typical human male has none.

Related Questions

1.
Who among the following coined the term 'gene' -

a
Mendel
b
Watson
c
Johannsen
d
Beadle
Answer and Explanation
Answer : Option C
Explanation :
Johannsen.Gene is a segment of DNA in all living organisms.
2.
The only movable bone in the skull is

a
maxilla
b
frontoparietal
c
nasal
d
mandible
Answer and Explanation
Answer : Option D
Explanation :
3.
The primary source of carbohydrates are

a
Marine animals
b
Crude oil
c
Plants
d
Coal-tar
Answer and Explanation
Answer : Option C
Explanation :
Plants.Plants are the primary sources of carbohydrates. They produce carbohydrates by photosynthesis which is the source of energy for nearly all life on earth, either directly, through primary production, or indirectly, as the ultimate source of the energy in their food.
4.
In dicots the pollen-grains possess:

a
two germ pores
b
four germ pores
c
three germ pores
d
one germ pore
Answer and Explanation
Answer : Option C
Explanation :
three germ pores.Pollen grains of monocots have one opening, while pollen grains of dicots have three openings.g. Pollengrains can be monocolpate (having one germ pore called germinal furrow e., monocots), bicolpate (2 germ pores) & tricolpate (3 germ pores e.g., dicots).
5.
The tallest & thickest type of grass is

a
Alfalfa
b
Bamboo
c
Lichens (FCI Assistant Grade-II Exam. 22.01.2013 (Paper-1)
d
Fodder
Answer and Explanation
Answer : Option B
Explanation :
Bamboo.The bamboo actually belongs to the grass family & is actually the tallest grass of all. The thickest bamboo can be 0. There are kinds of bamboo which are said to grow as tall as 100 feet in height.2m - 0.3m (8- 12) thick. Bamboo is a perennial grass with woody stems that are divided into sections by joints called nodes. One of the fastest-growing plants on the planet

More Questions

1.
Who among the following coined the term 'gene' -

2.
The only movable bone in the skull is

3.
The primary source of carbohydrates are

4.
In dicots the pollen-grains possess:

5.
The tallest & thickest type of grass is

6.
Pulses are a good source of

7.
The source of oxygen in atmosphere is due to

8.
The gas released during photosynthesis:

9.
AIDS is a/an

10.
Potassium meta-bisulphite is used as a food preservative for