Fibrous root are a pattern of root growth where all branches are about the same size. A fibrous system is usually formed by thin, moderately branching roots growing from the stem. It is universal in monocotyledonous plants and ferns. Examples of plants that have fibrous root system include; grass, wheat, maize, banana, white clover among others.
Correct answer:
"<span>B- homologous chromosomes join together to form tetrads during prophase I"
</span>It is during prophase I that homologous chromosomes join together (<span>synapsis)</span> and form tetrads - four chromatids are together in the new structure of two chromosomes - and this is the reason why crossing-over occurs in this phase. It is in this tetrad that both arms of both chromosomes may crossover and matching regions exchange places. This process results in homologous chromosomes recombination leading to genetic variability.
Diseases: Osteoporosis & Scoliosis
Injuries: Open fracture, Avulsion fracture & Bowing fracture
