Given below are four statements (A-D) each with one or two blanks. Select option which correctly fills up the blanks in any two statements.
(A) Multiple ovulation i̲ transfer teachnology is for ii̲ improvement.
(B) In it a cow is administered i̲ to induce follicular maturation and ii̲ ovulation.
(C) Instead of one egg per cycle, i̲ eggs are produced through it.
(D) The fertilised i̲ at ii̲ celled stages are recovered non-surgically and transferred to surrogate mothers.
Answers
ANSWER
In evolutionary biology, convergent evolution is the process whereby organisms not closely related (not monophyletic), independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.
Wings of butterfly and birds look alike and are the results of convergent evolution.
The gases Miller used were methane (CH4), ammonia (NH3), hydrogen (H2), and water (H2O).
Next, he ran a continuous electric current through the system, to simulate lightning storms believed to be common on the early earth.
Analysis of the experiment was done by chromatography.
At the end of one week, Miller observed that as much as 10-15% of the carbon was now in the form of organic compounds.
Two percent of the carbon had formed some of the amino acids which are used to make proteins.
Vermiform appendix is a vestigial organ and an anatomical evidence of evolution.
According to Darwin evolution took place due to small variations and survival of the fittest.
Therefore, the correct answer is option A.