Biology
Biological Reproduction
762 Questions
Biological reproduction encompasses processes like asexual and sexual reproduction, alternation of generations, and specific mechanisms in plants and fungi. This topic is fundamental for biology paper preparation in various competitive exams. Practice these questions to solidify your understanding.
Asexual reproduction structuresPlant and fungi life cyclesCloning and fertilizationReproductive terminology
Biological Reproduction Questions
Dichogamy refers to _________________.
-
Male and female sex organs maturing at the same time
-
Male and female sex organs maturing at different times
-
Male sterility
-
Female sterility
Self-sterility can be related to which of the following phenomena?
-
Emasculation
-
Sexual incompatibility
-
Cross pollination
-
All of the above
D
Correct answer
Explanation
Incapability of pollen grains of one flower to grow over the stigma of the same flower due to the presence of similar sterile genes is called self-sterility. Which a leads to emasculation, sexual incompatibility, and cross-pollination.
So the correct option is 'Emasculation, Sexual incompatibility, and Cross-pollination'.
Which of the following is a type of plant reproduction?
-
Sexual reproduction
-
Asexual reproduction
-
Both sexual and asexual reproduction
-
None of the above
C
Correct answer
Explanation
Plants can reproduce both sexually and asexually. Sexual reproduction involves the fusion of two gametes, while asexual reproduction involves the production of new plants from a single parent plant.
Which of the following is NOT a type of bacterial reproduction?
-
Binary fission
-
Conjugation
-
Transformation
-
Transduction
D
Correct answer
Explanation
Transduction is a process by which bacteria transfer genetic material through the action of a virus.
Which type of reproduction involves the fusion of two gametes?
-
Asexual Reproduction
-
Sexual Reproduction
-
Binary Fission
-
Budding
B
Correct answer
Explanation
Sexual reproduction involves the fusion of two gametes, a sperm and an egg, resulting in genetic variation.
Which type of asexual reproduction involves the formation of buds?
-
Binary Fission
-
Fragmentation
-
Budding
-
Spore Formation
C
Correct answer
Explanation
Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud on the parent organism.
Which of the following is not a characteristic of living organisms?
-
Organization
-
Reproduction
-
Growth and development
-
Non-living
D
Correct answer
Explanation
Living organisms are characterized by their ability to organize, reproduce, and grow and develop. Non-living things do not possess these characteristics.
What is the term used to describe the process by which coral reefs reproduce and create new colonies?
-
Coral spawning
-
Coral fragmentation
-
Coral budding
-
Coral polyp division
A
Correct answer
Explanation
Coral spawning is the process by which coral reefs reproduce and create new colonies, involving the release of eggs and sperm into the water to form new coral polyps.
Which of these is a type of asexual reproduction in plants?
-
Pollination
-
Fertilization
-
Budding
-
Germination
C
Correct answer
Explanation
Budding is a type of asexual reproduction in plants where a new plant grows from an outgrowth or bud on the parent plant.
The process by which plants reproduce sexually is called:
-
Photosynthesis
-
Cellular respiration
-
Transpiration
-
Sexual reproduction
D
Correct answer
Explanation
Sexual reproduction is the process by which plants reproduce sexually, involving the fusion of male and female gametes.
Which of the following is an example of a biological transition?
-
Getting married
-
Having a child
-
Starting a new job
-
Retiring
B
Correct answer
Explanation
Having a child is an example of a biological transition.
How does the Panspermia Hypothesis relate to the concept of panspermia?
-
Panspermia is a broader concept that encompasses the Panspermia Hypothesis.
-
The Panspermia Hypothesis is a specific type of panspermia.
-
Panspermia and the Panspermia Hypothesis are unrelated concepts.
-
None of the above.
A
Correct answer
Explanation
Panspermia is a broader concept that encompasses the Panspermia Hypothesis. Panspermia refers to the general idea that life exists throughout the universe and can be transferred from one planet to another. The Panspermia Hypothesis is a specific type of panspermia that proposes that life originated on another planet and was transported to Earth.
What is the process by which coral reefs are formed?
-
Coral polyps secrete calcium carbonate to build their skeletons
-
Coral polyps reproduce asexually to form new colonies
-
Coral polyps feed on plankton and other small organisms
-
Coral polyps are symbiotic with algae that provide them with food
A
Correct answer
Explanation
Coral polyps are small animals that secrete calcium carbonate to build their skeletons. These skeletons form the structure of coral reefs.
What is the term used to describe the process of coral reproduction?
-
Spawning
-
Fragmentation
-
Budding
-
All of the above
D
Correct answer
Explanation
Coral reproduction can occur through various methods, including spawning, fragmentation, and budding. Spawning involves the release of eggs and sperm into the water, while fragmentation and budding are asexual processes where new coral colonies form from broken fragments or buds.
What is the name of the process by which bacteria reproduce?
-
Mitosis
-
Meiosis
-
Binary fission
-
Budding
C
Correct answer
Explanation
Binary fission is the process by which bacteria reproduce.