Other Biology Answers

Suppose that every human gamete contains approximately 40,000 genes.

a. If the forward mutation rate is 1 × 10‐5 new mutations per gene per
generation, what is the average number of new mutations per gamete per
generation? Show your work.

b. What is the average number of new mutations per gamete per generation if
the forward mutation rate is 1×10‐4? Show your work.

In Ganong's respirometer a respiratory substrate is kept and observed that the level of Hg in leveling tube is fall. The respiratory substrate should be a:-
(1) Groundnut seed
(2) Wheat seed
(3) Pieces of Opuntia stem
(4) Soyabean seed

A cladogram showing evolution of plants given below, study it carefully and give the answer of following question :-
In above flowchart, '1,2,3,4,5' represent which of the following groups ?
http://www.onlinetestseries.in/data/images/common/papers/partners/32/1321/image211.png

Which of the following endocrine glands doesn't work under regulation of pituitary gland :-
a- parathyroid
b- Thyroid gland
c- Adrenal cortex
d- Adrenal medulla
e- Testis / ovary
(1) a and b
(2) a and d
(3) b, c and e
(4) a, d and e

evaluate the effects of tilling on roots for better exchange of gases with the soil air

GIVEN BELOW ARE SOME SETS OF ARTHROPODS IN WHICH ONE IS HARMFUL AND ONE IS BENEFICIAL . WHICH ONE OF THE FOLLOWING IS EXCEPTION TO THIS ?
1. APIS , CULEX
2. BOMBYX , ANOPHELES
3. LACCIFER , AEDES
4. PINCTADA , LOCUSTA

Genetic modification of plants and animals is a replacement for

selective breeding

cross-pollination

pesticides

crop rotation

chemical fertilizers

what is sexual reproduction ?

The osmotic pressure that arises because of a protein concentration gradient is known as the:-
(1) Oncotic pressure
(2) Peptide pressure
(3) Amino pressure
(4) Filtration pressure