A pea plant with purple flowers was crossed with a pea plant with white flowers producing 50 plants with only purple flowers. On selfing, these
plants produced 483 plants with purple flowers and 161 with white
flowers.
(a). What will be the set of genes present in the F1 generation?
(b). Give reason why only purple flowered plants are observed in F1
progeny.
(c). Give the phenotype of F2 generation, When F1 were self-pollinated.
What can you conclude about the nature of the two traits?

Four types of motile cells in human body?

Why would a drug the damages capsids treat a viral infection

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.