An individual with the genotype AaBb (if genes are unlinked) will produce how many types of gametes? MCQ with Answer and Explanation

Explanation:
Prophase I of meiosis is divided into five sub-stages: leptotene, zygotene, pachytene, diplotene, and diakinesis. Crossing over, the exchange of genetic material between non-sister chromatids of homologous chromosomes, occurs specifically during the pachytene stage at structures called recombination nodules.

Explanation:
Gibberellins (GAs) promote stem elongation. In rosette plants (like cabbage, beet, and radish) that have a short stem and closely packed leaves, the application of gibberellin induces sudden and rapid stem elongation just before flowering, a phenomenon known as 'bolting'. This is widely used in agriculture.

Explanation:
A neuron consists of a cell body (soma), dendrites, and an axon. Dendrites are short, branched processes that receive impulses and conduct them towards the cell body. The axon is a long, single, cylindrical fiber that conducts nerve impulses away from the cell body to other neurons, muscles, or glands. The myelin sheath is an insulating layer around the axon.