Test Details

Biology Semester 1

Exam based on cbse pattern

Nov 14, 3:00 PM

30 minutes

Nov 14, 3:30 PM

25.0 marks

MCQ

25 questions

R.S.GUPTA

neet preparation based on ncert .

Class Details

Biology

Class 12

Biology

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Question Text

Question 1 :
1. What is the fate of the seven cells of the embryo sac ?

Question 2 :
Identify A, B, C, D and E structures shown in figure of a female gametophyte respectively

Question 5 :
The above diagram refers to a T. S. of anther. Identify A to E respectively

Question 7 :
In the given diagram identify the marked hormones in sequence -ABCD.

Question 9 :
Uterine endometrium, epithelial glands and connective tissue are broken in menstrual phase. This is due to

Question 11 :
When dominant and recessive alleles express itself together it is called

Question 12 :
Two organisms that are true-breeding for a certain genetic characteristic are mated and their offspring analysed. Which of the following statements about this situation is true?

Question 13 :
Down’s syndrome is caused by an extra copy of chromosome number 21. What percentage of offspring produced by an affected mother and a normal father would be affected by this disorder?

Question 14 :
Haemophilia is mentioned as a trait carried by the mother and passed to her sons. What is the pattern of inheritance for this trait?

Question 17 :
The figure gives an important concept in the genetic implication of DNA. Fill the blanks A, B and C.

Question 21 :
Which of the following is not true about the birth control pill? (a) (b) . (c) (d)

Question 22 :
Removal of introns and joining the exons in a defined order in a transcription unit is called:

Question 23 :
A short sequence of bases on one strand of DNA is AGTCTACCGATAGT. If this sequence serves as a template for the formation of a new strand of DNA, what will be the corresponding base sequence in the new strand?

Question 25 :
Given diagram represents the schematic structure of a transcription unit with some parts labelled as A, B, C and D. Select the option which shows its correct labelling in sequence of ABCD.

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