Q. A locus in mice is involved with pigment production; when parents heterozygous at this locus are mated, 3/4 of the progeny are coloured and 1/4 are albino. Another phenotype concerns coat colour; when two yellow mice are mated, 2/3 of the progeny are yellow and 1/3 are agouti. The […]

Cytokinesis-the actual process of cell division-has attracted theorists for well over 100 years. It has been said that all possible explanations of cytokinesis have been proposed; the problem is to decide which one is correct. Consider the following three hypotheses: 1. Chromosome signaling: When chromosomes split at anaphase, they emit […]

According to positive psychology, the absence of good feelings or experiences can cause more negative emotions. Focusing on the positive and bringing in positive experiences may cultivate pleasure, engagement, and meaning. Individuals can learn to control and even increase the number of positive experiences as well as to regulate and […]

1. A highly concentrated solution of salt water is known as sole (pronounced, soh-lay). It is prepared by dissolving large amounts of salt in water until the water is saturated with salt. Explain in detail the properties of water that make it such a good solvent for the salt to […]