What is the difference between dominant and recessive traits?
Dominant traits are expressed when at least one dominant allele is present, while recessive traits are only expressed when both alleles are recessive.
What is heredity?
Heredity is the process by which traits are passed from parents to offspring through genes.
What is the role of pollination in plant reproduction?
Pollination is the process of transferring pollen from the male reproductive part of the flower (anther) to the female reproductive part (stigma). It is necessary for fertilization and the formation of seeds in flowering plants.
Why is genetic variation important in sexual reproduction?
Genetic variation increases the ability of a population to adapt to changing environments. It ensures that some individuals have traits that may be beneficial for survival in new or challenging conditions.
What is the role of meiosis in sexual reproduction?
Meiosis is the process that produces gametes with half the number of chromosomes. It introduces genetic variation through crossing over and independent assortment of chromosomes.
How is sexual reproduction different from asexual reproduction?
Sexual reproduction involves the fusion of gametes from two parents, leading to genetic variation. Asexual reproduction involves only one parent and produces genetically identical offspring.
What is the significance of conjugation in single-celled organisms?
Conjugation is a form of sexual reproduction that allows single-celled organisms to exchange genetic material, increasing genetic variation and enhancing their ability to adapt to environmental changes.
Why is asexual reproduction more common in single-celled organisms?
Asexual reproduction is energy-efficient and allows for rapid population growth, making it an ideal mode of reproduction for single-celled organisms that need to multiply quickly in favorable conditions.
How is budding different from binary fission?
In budding, a small outgrowth (bud) forms on the parent organism and grows into a new individual before detaching. In binary fission, the parent cell splits into two identical cells.
What is binary fission, and which organisms use it?
Binary fission is an asexual mode of reproduction where a single-celled organism divides into two identical daughter cells. It is common in organisms like bacteria, Amoeba, and Paramecium.
Get Social