In which one of the following the genus name, its tow characters and its class/ phylum are correctly matched?
Genus
|
Two characters
|
Class/phylum
|
Salaman dra
|
i).A tympanum represents ear
|
Amphibia
|
Genus |
Two characters |
Class/phylum |
Pteropus |
i)Skin possesses hair ii)Oviparous |
Mammalia |
Genus |
Two characters |
Class/phylum |
Aurelia |
i)Cnidoblas ii)Organ level of organization |
Colenterata |
Genus |
Two characters |
Class/phylum |
Aurelia |
i)Cnidoblas ii)Organ level of organization |
Colenterata |
Given below is a sample of a portion of DNA strand giving the base sequence on the opposite strands. What is so special shown in it?
5' ______ GAATTC ________ 3'
3'________CTTAAG ________ 5'
Deletion mutation
Start codon at the 5'end
Palindromic sequence of base pairs
Palindromic sequence of base pairs
larger but to have smaller sex organs
larger and to haver larger sex organs
smaller and to have smaller sex organs
smaller and to have smaller sex organs
C.
smaller and to have smaller sex organs
As we proceed from thallophyta to angiosperms, there is gradual reduction in gametophte with reduced size of sex organs. From thallophyta to angiosperms, there is progressive elaboration of sporophytes.
Phase | Thallophyta | Bryophyta | Pteridophyta | Gymnosprems | Angiosperms |
Gametophyte(%) | 90 | 75 | 50 | 25 | 10 |
Sporophyte(%) | 10 | 25 | 50 | 75 | 90 |
Which one of the following statements is correct?
Seeds of orchids have oil-rich endosperm
Placentation in primrose is basal
Flower of tulip is a modified shoot
Flower of tulip is a modified shoot
There is a restriction endonuclease called Eco RI. What does 'co' part in it stand for?
Coelom
Coenzyme
coli
coli
Consider the following four conditions (a - d) and select the correct pair of them as adaptation to environment in desert lizards.
The conditions:
I. Burrowing in soil to escape high temperature.
II. Losing heat rapidly from the body during high temperature
III. Bask in sun when temperature is low
IV. Insulating body due to thick fatty dermis
I and III
II and IV
I and II
I and II
'Jaya' and 'Ratna' developed for green revolution in India are the varieties of
rice
wheat
Agarose extracted from sea weeds finds use in
tissue culture
PCR
gel electrophoresis
gel electrophoresis
Which one of the following structural formulae of two organic compounds is correctly identified along with its related function?
A: Triglycerid e- major - source of energy
B: Uracil - a component of DNA
A - Lecithin - a component of cell membrane
A - Lecithin - a component of cell membrane