Zoology - Online Test
Q1. A plant X has 2n= 8 chromosomes, how many chromosomes are present in daughter cells after meiosis II.
Answer : Option C
Explaination / Solution:
The number of chromosome reduces to half at the end of meiosis cell division. If plant has 2n= 8 chromosome the number of chromosomes present in daughter cells after meiosis II is 4 only.
Q2. The smallest bands in the agarose gel will be towards
Answer : Option C
Explaination / Solution:
The smallest segment of DNA in the agrose gel will be towards anode or positively charged ends. The DNA fragments are negatively charged and moves towards negatively charged anode.
Q3. Why, according to our reading, did Darwin take so long to publish the Origin of Species?
Answer : Option C
Explaination / Solution:
Charles Darwin knew that once he announced his findings, he would become the center of a debate between religion and science. He knew he would shake everything that people had believed for so long. Darwin waited 20 years to present his work to the public.
Q4. Full form of ICBN is
Answer : Option B
Explaination / Solution:
ICBN stands for International code of botanical nomenclature that frames rules for nomenclature of plants applicable for all over the world.
Q5. Sparrow is
Answer : Option B
Explaination / Solution:
Sparrow feeds on fruits as well insects. Herbivores or plant eaters are primary consumer and carnivores that feed on herbivores are secondary consumer. So, Sparrow occupy both primary and secondary trophic levels.
Q6. alpha endotoxins are formed by
Answer : Option B
Explaination / Solution:
Alpha endotoxins are formed by sporulation. Alpha endotoxins are known to be frequent contaminants in plasmid DNA extracted from bacteria.
Q7. Lactational amenorrhea method of natural contraception is effective up to
Answer : Option C
Explaination / Solution:
Lactational amenorrhea means absence of menstrual cycle during instance lactational period after the parturition. This method is reported to be useful up to six months of parturition.
Q8. The mouth part of cockroach which is compared to tongue is
Answer : Option A
Explaination / Solution:
A median flexible lobe called as hypopharynx act as tongue. It lies within the cavity enclosed by the mouth parts.
Q9. A peculiar group of dual organism which are formed by an association between an algae and a fungus.
Answer : Option C
Explaination / Solution:
A lichen is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi in a symbiotic relationship. The combined lichen has properties different from those of its component organisms.
Q10. A gut parasite will not need
Answer : Option B
Explaination / Solution:
The parasite obtaintheirfood from host body. Gut parasite like round worm and tap worm absorbed digested food from our body. They do not require alimentary canal as they absorb digested food.
