1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Two crosses between the same pair of genotypes or phenotypes in which the sources of the gametes are reversed in one cross, is known as : -
A
Reciprocal cross
B
Reverse cross
C
Test cross
D
Dihybrid cross
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Pattern baldness, moustaches and beard in human males are examples of : -
A
Sex limited traits
B
Sex influenced traits
C
Sex determining traits
D
Sex linked traits
3
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In Drosophila, the sex is determined by : -
A
X and Y chromosomes
B
Whether the egg is fertilized or develops parthenogenetically
C
The ratio of number of X-chromosomes to the sets of autosomes
D
The ratio of pairs of X-chromosomes to the pairs of autosomes
4
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
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 ?
A
50%
B
100%
C
75%
D
25%
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12