Dorothy works as a medicinal chemist in a pharmaceutical company. what could one of her assignments be? a. to test new x-ray equipment b. to develop new surgical techniques c. to design new software that in the research of new molecules d. to research molecules in spider venom for new pain medication

Option (4).

Explanation:

Medicinal chemistry is an interdisciplinary science that include medicinal chemistry, pharmaceutical chemistry and chemistry. This interdisciplinary branch mainly focus on the synthesis, design and development of new drugs.

Dorothy is a medicinal chemist, she mainly focus on the new drug discovery in a pharmaceutical company. She can research the chemical molecule present in spider venom and discover a new drug for pain medication. The topic of new pain medication of snake venom can be her assignment.

Thus, the correct answer is option (D).

chromosomes carry the genetic information for organisms. also, chromatin is the thread like dna which is located in the nucleus of an organism.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation: