Question

1.Phyllis works at a agricultural laboratory that specializes in cloning beef cattle bulls to provide meat for the high-end gourmet restaurant trade. Which of the following describes how Phyllis clones the beef cattle?

		Take a sample of cells from the bull to be cloned; separate the cells and grow them into groups of unspecialized cells called callus; use hormones to manipulate the callus groups into growing into new animals.
		Take cow eggs and remove their nuclei; insert the nuclei from living cells of the bull to be cloned into the eggs; the eggs grow and develop into new bulls.

2.

1. Which of the following best describes how a stem cell system works?

   		A stem cell divides by meiosis; all four daughter cells become specialized.
   		A stem cell divides by mitosis; both daughter cells become new stem cells.
   		A stem cell divides by mitosis; both daughter cells become specialized.
   		A stem cell divides by mitosis; one daughter cell becomes a specialized cell, the other daughter cell becomes a new stem cell.

Answer 1