Reasons for success of Mendel
Experiment by carefully planned
He involved large sample in his experiment
He introduced the concept of dominance and ressivness
In pea plant contrasting character can easily be recognised
Fragmentation
Multicellular organism
Divide into two different individual
Example spirogyra
A- testis
B- vas defence
C- seminal vessel
D- prostate gland
Identify chromosomal disorder caused due to non distinction of 21st number of chromosome and enlist its symptom
Down syndrome
Genotype 45 + x x or 45 + xy
Poor development in skeletal
Disting facial features like small head mouth ears
What is vestigial organ
Vestigial organ or rudimentary organ are imperfect or non-functional organ which are fully functional in other animal or ancestors
What is zift
Zygote intrafileopen transfer
Arrange the following steps of DNA fingerprinting in correct sequence:
a. Gel electrophoresis
b. Isolation of DNA
c. Southern blotting
d. Restriction digestion
Distinguish between sperm and ovum
Sperm
In male
Testis
Small in size
Million at one time
Ovum
In female
Ovary
Large
One per month
Uses of gene therapy
Replace of damage or missing cell
Deliver cell to speed up destruction of Cancer cell
Deliver cancer cell to revert back to normal
Deliver bacterial or viral cell as vaccination
Double fertilization
Unique feature of aginosperm
To products are obtained as a result
It utilise both male gamet produced by pollen grain
It increase the viability of seed of aginosperm
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