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, the common bread wheat, is

Vernalisation is done at

Question 15

Paheli participated in a 400 m race competition held at her school and won the race. When she came home she had mixed feelings of joy and pain as she had cramps in her leg muscles. After a massage, she was relieved of the pain. Answer the following questions related to the situation.

(a) What can be the possible reasons for the pain in her legs?

(b) Why did she feel comfortable after a massage?

Actually it is from human reproduction.

The blood flowing through the umbellical cord of mammalian embryo is

A

a) 100%foetal.

b) 100% maternal.

c) 50%foetal and 50%maternal .

d) none of these.

In organisms showing haplontic life cycle, the meiocyte is

Analyse the enzymes responsible for digestion of nutrients in the Small Intestine and choose the incorrect option in the following Reactions :

i). Proteins $\stackrel{Chymotrypsin,carboxypeptidaseA}{\underset{CarboxypeptidaseBProelastase}{⟶}}$ Dipeptides,Tripeptides,Oligopeptides.

ii).Dipeptides,Tripeptides,Oligopeptides $\stackrel{DipeptidasesTripeptidase}{\underset{oligopeptidases}{⟶}}$ Amnio acids

iii).Nucleic acids $\stackrel{Nucleases}{\underset{Nucleotidases}{⟶}}$ Nitrogenous bases sugar (Pentose)

Match the following chambers of the heart with the respective blood vessels:

Which of the following vaccines are given to a child before he turns 5 years old?

Cyanobacteria are present everywhere.....so why they dont spoil our refrigator food( they should work there also)?

Alpha helix is found in

In coconut which type of endosperm is present and what does the coconut water and coconut milk shows?

Phloem is a vessel in plants which carries

Which one of the following is the correct difference between Rod Cells and Cone Cells of our retina?

In which of the following cellular compartment(s) do respiratory reactions occur?

In total, how many of the following animals show oestrus cycle and menstrual cycle respectively?

Cow, Human, Gorilla, Tiger, Deer, Dog, Monkey, Rat and Sheep.

An
element with molar mass 2.7
× 10^-2
kg mol^-1
forms a cubic unit cell with edge length 405 pm. If its density is
2.7 × 103 kg m⁻³,
what is the nature of the cubic unit cell?

Which among the following is a prerequisite in Selaginella to exhibit seed habit?

Regeneration of cartilage can occur from its

1) Matrix 2) Plasma 3) Perichondrium 4) A piece without perichondrium

The cross bridges involved in muscle contraction are located on the ________________.

Which among the following cells does HIV attack first?

How do you test for the presence of starch in a food item? [5 MARKS]

In a human foetus the limbs and digits develop after

Which one of the following is not true for ribosomes?

The statements given below describe certain features that are observed in the pistil of flowers.
i Pistil may have many carpels
ii Each carpel may have more than one ovule
iii Each carpel has only one ovule
iv Pistil have only one carpel
Choose the statements that are true from the options below:
(a) i and ii (b) i and iii
(c) ii and iv (d) iii and iv

Increased use of CFCs in the world is likely to have resulted in which of the following statements.

Snow blindness refers to

The first cells of sporophytic and gametophytic generation in plants are

Which of the following is the upper part of the womb?