Question
Define analogous organ. Give one example of analogous organ.
✓
Answer
The organs, which have similar functions but are different in their structural details and origin are called analogous organs. The analogous structures are the result of convergent evolution. Fins of fishes and flippers of whales are analogous organs.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
How would you justify circular flow of genetic information?
Haemophilia is a sex-linked recessive disorder of humans. The pedigree chart given below shows the inheritance of haemophilia in one family. Study the pattern of inheritance and answer the questions given.
- Give all the possible genotypes of the members 4; 5 and 6 in the pedigree chart.
- A blood test shows that the individual 14 is a carrier of haemophilia. The member numbered 15 has recently married the member numbered 14. What is the probability that their first child will be a haemophilia male?
Explain logistic growth with equation.
How do fossils help us in understanding the evolutionary history?
A team of students are preparing to participate in the interschool sports meet. During a practice session, you find some vials with labels of certain cannabinoids.
- Will you report to the authorities? Why?
- Name a plant from which such chemicals are obtained.
- Write the effect of these chemicals on human body.
A dihybrid heterozygous round, yellow seeded garden pea was crossed with a double recessive plant.
- What type of cross is this?
- Work out the genotype and phenotype of the progeny.
- What principle of Mendel is illustrated through the result of this cross?
- In plant breeding experiments, pistillate flowers are not emasculated, but are still bagged. Explain.
- Why are outbreeding devices developed by some flowering plants?
Differentiate between inbreeding and outbreeding in cattle. State one advantage and one disadvantage for each one of them.
Explain the inheritance of Sickle Cell anaemia.
Draw a well labelled diagram of sectional view of ovary showing different stages of graafian follicle.