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Sandeep Jha

Asked: December 26, 2023In: Class 10 Science

Two pea plants – one with round yellow seeds (RRYY) and another with wrinkled green (rryy) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are self-pollinated, which new combination of characters is expected in F2 progeny? How many seeds with these new combinations of characters will be produced when a total 160 seeds are produced in F2 generation? Explain with reason.

Cross-pollination is a plant reproduction process where pollen is transferred from the male reproductive organ of one flower to the female reproductive organ of another, enhancing genetic diversity.

Sonal Chauhan

Asked: December 26, 2023In: Class 10 Science

State the number of sets of chromosomes present in a zygote.

Chromosomes are thread-like structures in cells containing DNA. They carry genetic information, determining an organism’s traits. Humans have 23 pairs, with one set inherited from each parent.

Sonal Chauhan

Asked: December 26, 2023In: Class 10 Science

Trace the path a male gamete takes to fertilise a female gamete after being released from the penis.

Male gamete (sperm) is small, mobile, and contributes genetic material. Female gamete (egg) is larger, non-motile, and provides nutrients. Fusion during fertilization forms a zygote, initiating development.