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17151.

A tall violet flowered plant (TTVV) is crossed with a dwarf white flowered plant (ttvv). When the F1 plants are self pollinated, a total of 1600 F2 plants are produced. Among them, how many plants are tall with white flowers?

Answer»

A tall violet flowered plant (TTVV) is crossed with a dwarf white flowered plant (ttvv). When the F1 plants are self pollinated, a total of 1600 F2 plants are produced. Among them, how many plants are tall with white flowers?


17152.

Name the endocrine gland that produces calcitonin and mention the role played by this hormone.

Answer»

Name the endocrine gland that produces calcitonin and mention the role played by this hormone.

17153.

Extracellular enzymes that play a role in decomposition are

Answer» Extracellular enzymes that play a role in decomposition are
17154.

Autotrophic metaphytes are found in kingdom of ..............

Answer»

Autotrophic metaphytes are found in kingdom of ..............


17155.

Match the following (a) Cristae (i) Flat membranous sacs in the stroma (b) Cisternae (ii) Infoldings in mitochondria (c) Thylakoids (iii) Disc-shaped sacs in Golgi apparatus

Answer»

Match the following

(a) Cristae (i) Flat membranous sacs in the stroma

(b) Cisternae (ii) Infoldings in mitochondria

(c) Thylakoids (iii) Disc-shaped sacs in Golgi apparatus

17156.

Choose the correct option with respect to the assertion and reason given. Assertion [A]: Uteruses of multiparous women are slightly smaller than those of nulliparous women. Reason [R]: The uterus walls is highly elastic as it accommodates the growing foetus.

Answer»

Choose the correct option with respect to the assertion and reason given.

Assertion [A]: Uteruses of multiparous women are slightly smaller than those of nulliparous women.

Reason [R]: The uterus walls is highly elastic as it accommodates the growing foetus.


17157.

People living at sea level have around 5 million RBCs per cubic millimetre of their blood whereas those living at an altitude of 5,400 m have around 8 million. This is because at high altitude,

Answer»

People living at sea level have around 5 million RBCs per cubic millimetre of their blood whereas those living at an altitude of 5,400 m have around 8 million. This is because at high altitude,


17158.

Describe development of endosperm after double fertilization?

Answer»

Describe development of endosperm after double fertilization?

17159.

Identify the correct statements with respect to an anther. More than option can be correct.

Answer»

Identify the correct statements with respect to an anther. More than option can be correct.


17160.

What will be the ploidy of (i) embryo, (ii) perisperm and (iii) endosperm of seeds produced by a cross between a 4n female plant and a 2n male plant?

Answer»

What will be the ploidy of (i) embryo, (ii) perisperm and (iii) endosperm of seeds produced by a cross between a 4n female plant and a 2n male plant?


17161.

What is line Spectra of atom?

Answer»

What is line Spectra of atom?

17162.

How do cytokine barriers provide innate immunity in humans ? [1]

Answer» How do cytokine barriers provide innate immunity in humans ? [1]
17163.

What is the importance of endosperm ?Give 10 points?

Answer»

What is the importance of endosperm ?Give 10 points?

17164.

Number of DECARBOXYLATION in CAM plants to produce one sucrose is a)6 b)12 c)18 d)24

Answer» Number of DECARBOXYLATION in CAM plants to produce one sucrose is
a)6 b)12 c)18 d)24
17165.

During the embryogeny in Capsella bursa-pestoris (A) Embryo does not show distinction of plumule, cotyledons and radical (B) The cotyledons are made by hypobasal tier (C) The vesicular cell is towards the micropylar region (D) Most of the radicle is made by hypophysis

Answer»

During the embryogeny in Capsella bursa-pestoris

(A) Embryo does not show distinction of plumule, cotyledons and radical

(B) The cotyledons are made by hypobasal tier

(C) The vesicular cell is towards the micropylar region

(D) Most of the radicle is made by hypophysis

17166.

Define cohesive end sites or cos sites

Answer» Define cohesive end sites or cos sites
17167.

Fill in the gaps: Reabsorption of water from distal parts of the tubules is facilitated by hormone ___

Answer»

Fill in the gaps:
Reabsorption of water from distal parts of the tubules is facilitated by
hormone ___

17168.

Which of these data is not needed for a herbarium sheet?

Answer»

Which of these data is not needed for a herbarium sheet?


17169.

What are sex hormones? Why are they named so? State their function. [3 MARKS]

Answer» What are sex hormones? Why are they named so? State their function. [3 MARKS]
17170.

Spermatheca in earthworm is

Answer»

Spermatheca in earthworm is


17171.

Plants require water for their survival. But when watered excessively, plants die. Discuss.

Answer»

Plants require water for their survival. But when watered excessively, plants die. Discuss.

17172.

(i) Write the colligative property which is used to find the molecular mass of macromolecules. (ii) In non-ideal solution, what type of deviation shows the formation of minimum boiling azeotropes?

Answer» (i) Write the colligative property which is used to find the molecular mass of macromolecules.
(ii) In non-ideal solution, what type of deviation shows the formation of minimum boiling azeotropes?
17173.

Hypocotyl is:

Answer»

Hypocotyl is:


17174.

Fertilizin from ovum and antifertilizin from sperm are species specific then how inter species breeding is possible?

Answer» Fertilizin from ovum and antifertilizin from sperm are species specific then how inter species breeding is possible?
17175.

Which STD is responsible for burning micturition, along with purulent discharge from the genitals and painful external genitalia?

Answer»

Which STD is responsible for burning micturition, along with purulent discharge from the genitals and painful external genitalia?


17176.

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.

Answer»

The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C.


17177.

Pseudocoelom occurs in

Answer»

Pseudocoelom occurs in


17178.

Oxidative phosphorylation is the production of

Answer»

Oxidative phosphorylation is the production of


17179.

Molybdenum is the essential constituent of

Answer»

Molybdenum is the essential constituent of


17180.

is the floral formula for

Answer» is the floral formula for
17181.

Why has the Indian Government set up the organisation named GEAC? Give any two reasons. [2 Marks]

Answer» Why has the Indian Government set up the organisation named GEAC? Give any two reasons. [2 Marks]
17182.

The silverfish Lepisma is

Answer»

The silverfish Lepisma is


17183.

The embryonic stage occurs

Answer»

The embryonic stage occurs


17184.

Is an aquarium a complete ecosystem?

Answer»

Is an aquarium a complete ecosystem?

17185.

Choose the correct statement

Answer» Choose the correct statement
17186.

A collection of all the alleles of all the genes of a crop plant is called

Answer»

A collection of all the alleles of all the genes of a crop plant is called


17187.

What is 'carrying capacity' of a species in a habitat ? Why is logistic growth model considered more realistic. [2 Marks]

Answer» What is 'carrying capacity' of a species in a habitat ? Why is logistic growth model considered more realistic. [2 Marks]
17188.

Among the following species linear shape is found in:

Answer»

Among the following species linear shape is found in:


17189.

Which one of the following four glands is correctly matched with the description?

Answer»

Which one of the following four glands is correctly matched with the description?


17190.

Which cell secretes antibody?

Answer»

Which cell secretes antibody?


17191.

The troublesome American waterweed found in India is

Answer» The troublesome American waterweed found in India is
17192.

Identify the vascular bundle types with the given diagram

Answer»

Identify the vascular bundle types with the given diagram


17193.

The rate at which light energy is converted into chemical energy in ecosystems:

Answer»

The rate at which light energy is converted into chemical energy in ecosystems:


17194.

Binary fission is not shown by

Answer» Binary fission is not shown by
17195.

In ________, a two-layered body wall encloses a single cavity in which digestion takes place.

Answer»

In ________, a two-layered body wall encloses a single cavity in which digestion takes place.


17196.

Oxygen and carbon dioxide are exchanged in the alveoli by:

Answer»

Oxygen and carbon dioxide are exchanged in the alveoli by:


17197.

Grand total growth of plants involves,

Answer»

Grand total growth of plants involves,


17198.

Question 14 When CO2 is added to PEP, the first stable product synthesised is (a) pyruvate (b) glyceraldehyde-3-phosphate (c) phosphoglycerate (d) oxaloacetate

Answer»

Question 14
When CO2 is added to PEP, the first stable product synthesised is
(a) pyruvate (b) glyceraldehyde-3-phosphate
(c) phosphoglycerate (d) oxaloacetate

17199.

Except these two, all are cell aggregations in frog as far as sensory system is concerned.

Answer»

Except these two, all are cell aggregations in frog as far as sensory system is concerned.


17200.

Which of the following cells can divide in the adult?

Answer» Which of the following cells can divide in the adult?