CBSE
Multiple Choice QuestionsTurner's syndrome chromosome pattern is:
XO
XXX
XYY
XXY
First geneticist, father of genetics was
de Vries
Mendel
Darwin
Morgan
The number of chromosomes in Klinefelter's syndrome are :
47
46
45
44
Crossing over in diploid organisms is responsible for
dominance of genes
linkage between genes
recombination of linked genes
segregation of alleles
Inheritance of ABO blood groups illustrates
polyploidy
multiple allelism
euploidy
dominance
Sex determination in humans takes place by
sex chromosomes of father
measurement of sperm
measurement of ovum
sex chromosomes of mother
The genotype of a man having female sexual characters will be :
XXY
XYY
XO
XXX
The main cause of Edward syndrome, Patau syndrome and Down syndrome is :
mutation of gene
change in both autosomes and heterosomes
change in autosomes
change in heterosomes
When a tall plant with rounded seeds (TTRR) is crossed with a dwarf plant with wrinkled seeds (ttrr), the F1 generation consists of tall plants with rounded seeds. How many types of gametes an F1 plant would produce ?
One
Three
Four
Eight
'Heterosis' is related to :
cloning
selection
hybridization
introduction
