During prophase 1, Chromosomes become visible and crossing-over start occurring. Another thing that happens is the disappearance of the nucleolus and the disappearance of the nuclear envelope. The meiotic spindle then forms.
“During metaphase 1, the pairs of chromosomes (bivalents) become arranged on the metaphase plate and are attached to the now fully formed meiotic spindle. The centrioles are at opposite poles of the cell.”
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Answer:
Bromelain is a group of sulfhydryl containing proteases. Each of these proteases is composed of amino acids, the building blocks of protein.
Explanation:
Bromelain:
Bromelain is not regarded as a single enzyme. It is a mixture of proteolytic enzymes as well as phosphatases, glucosidases, peroxidases, cellulases and glycoproteins. At first, bromalain was regarded as an enzyme mixture produced by pineapple plants (<em>Ananas comosus</em>) but now it is referred to as any protease extracted from the Bromeliaceae family.
Proteins are macromolecules composed of amino acid subunits or monomers. Amino acids, linked through peptide bonds, form the complex globular structures of enzymes.