Questions

Q:

A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc x AaBbCc, the phenotypic ratio of the offsprings was observed as 1 : 6 : m : 20 : m : 6 : 1. What is the value of m?

A) 10 B) 15
C) 18 D) 24
 
Answer & Explanation Answer: B) 15

Explanation:

Here crossing is AaBbCc x AaBbCc

As it is trihybrid cross,

we know, Number of zygotes formed = 4n, where n = 3

43 = 64

Given ratio of offsprings = 1 : 6 : m : 20 : m : 6 : 1

Now,  1 + 6 + m + 20 + m + 6 + 1 = 64

34 + 2m = 64

2m = 30

=> m = 15.

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Q:

Lamarck's theory of inheritance of acquired characters was challenged by 

A) August Weismann B) Hugo de Vries
C) Herbert Spencer D) Carl Linnaeus
 
Answer & Explanation Answer: C) Herbert Spencer

Explanation:

August Weismann cut off the tails of mice for 21 successive generations and still they produced generation after generation of only tailed young ones. So he concluded that acquired characters are not inherited.

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Q:

Who present the theory of radioactive disintegration

A) Rutherford and Soddy B) Soddy and Fajan
C) Thomson and Rutherford D) Hahn and strassman
 
Answer & Explanation Answer: A) Rutherford and Soddy

Explanation:
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Filed Under: Chemistry

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Q:

Minjar Fair is the important fair celebrated in Chamba district. What does 'Minjar' represent for  ?

A) Lotus flowers B) Wheat flowers
C) Local Custom D) Maize flowers
 
Answer & Explanation Answer: D) Maize flowers

Explanation:
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Q:

Persons with which blood group are called universal donors?

A) AB B) A
C) O D) B
 
Answer & Explanation Answer: C) O

Explanation:
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Filed Under: General Science

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Q:

Which company announced the launch of 1Gbps (gigabits per second) wired broadband internet services in Hyderabad, India's first giga city?

A) ACT Fibernet B) BSNL
C) RCOM D) Telenor India
 
Answer & Explanation Answer: A) ACT Fibernet

Explanation:

ACT Fibernet announced the launch of 1Gbps (gigabits per second) wired broadband internet services in Hyderabad. It makes the `City of Pearls’ India’s first `Giga City.’ In Hyderabad, the 1 Gb plan will offer at Rs 5,999 per month.

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Q:

DNA can be found in what Organelles?

A) Chloroplasts and Mitichondria B) Nucleus and Ribosomes
C) Ribosomes and Mitochondria D) Endoplasmic Reticulum and Nucleus
 
Answer & Explanation Answer: A) Chloroplasts and Mitichondria

Explanation:

DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

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Q:

Unresolved dissonance is a characteristic of

Answer

When the tension is unresolved, we have unresolved dissonance. Unresolved dissonance is a characteristic of the baroque music.


The general characteristics of Baroque music is movement, energy, and tension.

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