Which type of selection is industrial melanism observed in moth, Biston bitularia:
Variations during mutations of meiotic recombinations are:
Answer: random, small and directional
Which of the following is an example for link species?
Appearance of antibiotic-resistant bacteria is an example of:
Answer: pre-existing variation in the population
Animal husbandry and plant breeding programmes are the examples of:
Answer: artificial selection
Which of the following is totally impossible outcome of Mendelï¿½s Experiment?
Answer: 4 tall plants and 1 medium height plant.
Which section of DNA provides information for one protein
What is the probability that the male progeny will be a boy?
Which of the following can be called a characteristic?
Palantological evidences for evolution refer to the:
For the MN-blood group system, the frequencies of M and N alleles are 0.7 and 0.3, respectively. The expected frequency of MN-blood group bearing organisms is likely to be
Homologous organ have
Answer: Same structure, different function
The first cells like structures evolved in
Eukaryotes with a nucleus evolved ---million years ago
In primitive earth, energy was formed from
Answer: Volcanic eruption