Which of the following terms refers to bloodstains that are not visible to the naked eye?

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" Which of the following terms refers to bloodstains that are not visible to the naked eye?  A.  molded bloodstains  B.  hemoglobin  C.  latent bloodstains  D.  blood spatter"

C.  latent bloodstains

Explanation:

Latent blood stains are not visible to the naked eye. For this reason, within the forensic science there are methods and equipment that can be used so that this type of blood stain can be visualized. The well-known luminol is one such method. Luminol causes a chemiluminescent reaction in contact with the blood stain and exposed to ultraviolet light. This reaction occurs due to the affinity between the iron molecules present in hemoglobin and luminol. Blood stains are photographed and samples are collected and sent to the laboratory.

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: