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Subject: Biology, asked on 10/6/17

pls provide me a diagram neatly labbeled for the following:
a)chiasmata
b)synapsis
c)bivalent asap pls
 

Subject: Biology, asked on 14/5/17

A women has blue eyes. Both her mother and grandmother also have blue eyes.which molecule is responsible for transfer of this trait?
(a) DNA
(b)pyrimidine
(c)tRNA
(d)guanine
 

Subject: Biology, asked on 17/4/17

Differentiate between synaptonemal complex, tetrad and chiasmata with their diagrams.

Subject: Biology, asked on 17/4/17

What is meant by diad of cells

Subject: Biology, asked on 15/4/17

Number of mitotic divisions needed to produce 400 seeds in pea plant is
A 200
B 700
C 500
D 400

Subject: Biology, asked on 25/3/17

How many combinations of chromosomes are possible in the gamete formed from a diploid cell have 10 chromosomes ?

Subject: Biology, asked on 13/3/17

Question) When a person dies, is their last breath and inhalation or an exhalation ? Why

Subject: Biology, asked on 13/3/17

Please make me understand what the explaination for the asked question could be?
Question:14 -Attempted
Proteins carry out functions in living organisms such as

store house of energy
genetic material
Fight against infectious organisms
role in catalytic activity of the enzyme
Proteins carry out many functions in living organisms, some fight infectious organisms.

Subject: Biology, asked on 13/3/17

Both  DNA and RNA consists of polymers of nucleotides. RNA is single stranded but DNA is double stranded. DNA polynucleotide contains thymine but RNA polynucleotide contains uracil.

Subject: Biology, asked on 13/3/17

I had clicked uracial , will my answer would be correct if the question could be
RNA differe from  DNA  in
then?
Question: 15-Attempted
DNA differ from RNA in having
Uracil
Adenine
Guanine
Thymine
DNA differ from RNA in having Thymine.Thymine is absent in RNA.RNA contain uracil in place of thymine.

Subject: Biology, asked on 13/3/17

Can you diagramattically show it?
Question 2: Attempted
Number of fatty acid residues found in one molecule of fat is
1
3
2
4

Fat consists of molecules of fatty acids and molecules of glycerin.Each molecule of fat contain three molecules of fatty acids and one molecule of glycerine.

Subject: Biology, asked on 13/3/17

Isn't the answer is wrong, because I read in photosythesis that Porphyrin is the cholorphyll molecule which does not have Mg atom, so I think all the options given are wrong?
Question 12: Not Attempted
Element located in centre of pophyrin ring of chlorophyll is
K
Ca
Mg
Mn

Chlorophyll molecule consists of a porphyrin ring and a long tail like chain of carbon and hydrogen.The centre of pophyrin ring is occupied by Mg ions.

Subject: Biology, asked on 13/3/17

Unbelievable ...!!

Would you please prove the statement asked in question?
Question 9: Attempted

No cell could live without

Chloroplast
Protein
Phytochrome
Enzyme

Enzymes are bio-catalyst.All the metabolic biochemical reactions are carried out with the help of enzyme.No cell could survive without enzyme.

Subject: Biology, asked on 13/3/17

Please explain the solution of the question to me?
Question8:Attempted
Which of the following is not obtained on hydrolysis of nucleic acid?

Pentose sugar
Pyrimidine
Phosphoric acid
Purine

Hydrolysis of nucleic acid (DNA and RNA) produces pentose sugar (ribose or deoxyribose) purine and pyrimidine.
Phosphoric acid is not released on hydrolysis of DNA or RNA.

Subject: Biology, asked on 13/3/17


At different places, in different chapters i have read that all of above cells do not divide after birth. I had used my knowledge of various chapters to answer this question, but the solution is trying to prove me wrong.

Please  tell the correct option with proper solution.
Question 6: Attempted
Human _______do not divide after birth.

Blood cells
Heart Cells
All of above
Nerve cells
Human nerve cells do not divide after birth.the length of nerve cells increases with increase in body size but not the number of nerve cells.

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