Bio Basic Edu

Gauhati University MBA Admission 2019, Application, Dates

2019-01-13T22:22:00.002-08:00

GAUHATI UNIVERSITY MBA ADMISSION NOTICE 2019-2021

Gauhati University MBA Admission 2019, Application, Dates - Admission in to Two year programme in Master of Business Administration (MBA) for the Session 2019-2021

Eligibility: A Bachelor's degree in any discipline with 50% marks in aggregate or in Honours/Major subject (if any) from Gauhati University or any other recognized University Those who have appeared in the final semester of the Bachelor's Degree may also apply provided they meet the eligibility criteria prior to 30h September, 2019.

Last date of online submission of Application form: 08/02/19.

Written test on: 16/02/19

For details MBA Admission Notification Click Here

For Apply Online Click Here

The Stanley Miller and Harold C. Urey performed an experiment by recreating in the laboratory, the probable atmosphere of the primitive earth

2018-12-28T07:39:00.000-08:00

1.The Stanley Miller and Harold C. Urey performed an experiment by recreating in the laboratory, the probable atmosphere of the primitive earth.
(i) What was the purpose of the experiment?
(ii) In which form was the energy supplied for the chemical reactions to occur?
(ii) For how long was the experiment run continuously?
(iv)Which gases were used during the experiment to simulate the primitive atmosphere?

Ans: (i) The purpose of the Urey and Miller's experiment was to prove that life has originated spontaneously from non living matter i.e. to provide experimental evidence for the theory of abiogonesis or chemical evolution.
(ii) Energy was supplied in the form of electrical discharges from electrodes at 800°C.
(iii) The experiment was run continuously for a week.
(iv) The gases used during experiment to simulate the primitive atmosphere were methane, ammonia, hydrogen and water vapour.

2. Write the full form of SCID and mention the cause of this congenital disorder. Mention any one difference between SCID and AIDS

Ans: SCID is Severe Combined Immuno deficiency. It is a congenital disease caused due to absence of T and B-lymphocytes, two types of white cells necessary for fighting infections, since birth.
It differs from AlDS in the respect that in AIDS, T-helper cells which stimulate antibody production by B-cells are reduced, due to viral attack while in SCID, both T and B-cells are absent ie.,individuals are born without these cells

NEET Biology Multiple Choice Questions (MCQs) and Answers-edubio.in

2018-12-06T06:23:00.000-08:00

1.The fruit developed from the signal ovary is said to be

(a) composite type (b) simple type

2.Double fertilisation results in the production of
(a) haploid nucleus (b) diploid nucleus

3.The fleshy fruits with hard and stony endocarp are called

(a) drupe (b) berry

4.The process of transfer of pollen grains from another to stigmatic surface of the flower with the help of water is called

(a) anemophily (b) zoophily

5.The capitulum type of inflorescence is found in

(a)marigold (b) salvia

(c)euphorbia (d) jasmine

6.The period of suspended growth due to exogenous conditions is termed as

(a)quiescence (b) dormancy

7.Which of following is a free living nitrogen fixing bacteria present in the soil

(a) Pseudomonas (b) Rhizobium

8.Which of the following plants is used as biofertiliser

(a) Nostoc (b) Funaria

9.Sudden and heritable change in a character of an organism is called

(a) mutation (b) heterosis

10.Mating between two individuals differing in genotye to produce genetic variation is called

(a) domestication (b) introduction

11.A hereditary disease which is never passed on from father to son is

(a) autosomal linked disease (b) X-chromosomal linked disease

12.A diploid living organism develops from zygote by repeated cell divisions is called

(a) meiosis (b) amitosis

13.The flower in which the gynoecium occupies the highest position on the thalamas leaving other parts below is called

(a)Hypogynous (b) perigynous

14.The arrangement of the ovules on the placentae developed from the central axis of the ovary called

(a) parietal placentation (b) axile placentation

15.The conversion of ammonia intro nitrites and nitrates is called

(a) ammonification (b) nitrification

16.In RNA , the thymine is replaced by

(a) guanine (b) adenine

Answers

1. (b) simple type

2. (c) triploid nucleus

3. (a) drupe

4. (c) hydrophily

5. (a)marigold

6. (b) dormancy

7. (c) Azotobacter

8. (a) Nostoc

9. (a) mutation

10. (c) hybridisation

11. (b) X-chromosomal linked disease

12. (c) mitosis

13. (a)Hypogynous

14. (b) axile placentation

15. (b) nitrification

16. (c) uracil