_________________ are the intermediate forms found in the transitional regions between two adjacent regions occupied by separate ecotypes of a species.

The light sensitive cells present in retina are:

Histones are organized to form a unit of:

Which statement is not true with regard to Z-DNA?

1. Each turn of the two polypeptide chains contains 12 base pairs.
2. Distance between two subsequent base pairs is 3.7 A.
3. The distance between axis and sugar phosphate is 10 Å.
4. Alternate deoxyribose sugar units in the polynucleotide chain have inverse orientation,

The cluster of photoreceptors present in the eyes of an insect is called:

Species confined to a region and not found anywhere ehe is:

Which one of the following belongs to flatworms?

The QRS complex in a standard ECG represents:

The genetic material of ØX174 is:

Flippers of Penguins and Dolphins are examples of:

Snow blindness in Antarctic region is due to :

In............... type, the embryosac is formed by the micropylar dyad cell.

Cuboidal epithelium with brush border of microvilli is found in:

In which of the tollowing techniques, the embryos are transterred to assist those females who cannot conceive?

'We learn in way's connected to things we already know, what we believe, and more. The statement implies which basic principle of constructivism?

Which among the following is not an objective of teaching biological science?

Identify the wrong statement with reference to transport of oxygen.

Inverted ecological pyramids are found in:
(i) Pyramid of number in a forest ecosystem.
(ii) Pyramid of biomass in a sea.
(iii) Pyramid of biomass in a grass land ecosystem.
(iv) Pyramid of biomass in a pond. ecosystem.
(v) Pyramid of number in a parasitic food chain.

Identify the concept, which is not directly linked to school biodiversity park.

Which one is not a nitrogen fixing bacteria ?

Adipose tissue is a ......................

Medulla oblongata is called as:

Which of the following hormone levels will cause release of ovum (ovulation) from Graffian follicle?

Deficiency symptoms and associated minerals are given below. Select the right match.

Interveinal chlorosis of leaves, first in younger leaves	Mg
Interveinal chlorotic and necrotic spots on leaves	Fe
Bronzing of the leaves	Mn
Interveinal chlorosis of leaves, first in older leaves	CI

The male accessory glands in humans include:

Which one is not a part of 'Digital Port Folio'?

Match the following and choose the correct answer.

a) S Cycle	i) Nuclear fallout
b) Oxygen tank	ii) National Park
c) Torrey canyon	iii) Thunder dragon
d) Sr 90	iv) Beggiatoa
	v) Oil spillage

Which of the following is the best science skill to be used by a student while studying the migration of birds ?

Which one is a wrong statement about sieve tubes?

i) They are found in pteridophytes and gymnosperms.

ii) They have companion cells.

iii) Sieve areas do not form sieve plates.

iv) Sieve areas are not well differentiated.

v) They consist of vertical cells placed one above the other forming long tubes connected at the end walls by sieve pores.

The portion of the retina where the cones are densely packed is called:

Which is not true about lesson plan ?

The seed dispersal is of compensatory zoochory in:

(i) Achyranthes

(ii) Cleome

(iii) Medicago

(iv) Mulberry

(v) Peepal

(vi) Tribulus

Diplohaplontic life cycle is exhibited by:

In education terminology , rubrics means :

Choose the correct answer.

(i) Companion cells are nucleated cells of phloem.

(ii) Vessels contain only living cells.

(iii) Sieve cells are enucleated at maturity.

(iv) Abnormal secondary growth due to accessory cambia is found in Asparagus.

(v) Stone cells does not contain end walls.

Select the bracket fungus from the following:

Which is not a second generation molecular marker ?

Carageenan is obtained from:

If the arrangement of genes in a chromosome is ABCDEFGH and if the inversion occurred between D and F, then the gene sequence in the inverted chromosome is:

The term linkage was coined by:

Which one is an anti-auxin?

Constructivist learning approach uses technology in which :

Which among the following is NOT a natural cytokinin?

Among the principles of curriculum development which one cater to the requirements paused by environmental and individualistic differences?

Which is the important site for the formation of glycoproteins and glycolipids in eukaryotic cells?

Which among the following denotes the degree to which a test measures what it is intended to measure ?

The headquarters of UNEP is in:

ഓംബുഡ്സ്മാനുമായി ബന്ധപ്പെട്ട് താഴെ പറയുന്ന പ്രസ്താവനകൾ പരിഗണിക്കുക:
(i) ഓംബുഡ്സ്മാൻ എന്ന ആശയം 1809-ൽ സ്വീഡനിൽ ഉത്ഭവിച്ചു.
(ii) ഓംബുഡ്സ്മാനെ സ്വീകരിച്ച ആദ്യ കോമൺവെൽത്ത് രാജ്യം 1962-ൽ ന്യൂസിലാൻഡ് ആയിരുന്നു.
(iii) ഇന്ത്യയിൽ, RBI ഓംബുഡ്സ്മാനെ 5 വർഷത്തേക്ക് നിയമിക്കുന്നു.
മുകളിൽ നൽകിയിട്ടുള്ള പ്രസ്താവനകളിൽ ഏതാണ്/ഏതൊക്കെയാണ് ശരി?

Powdery mildew of cereals is caused by :

Match the following diseases with the causative organism and select the correct option.

Typhoid	Wuchereria
Pneumonia	Haemophilus
Filariasis	Plasmodium
Malaria	Salmonella