4
adenine,thyamine,cytocine,guanine
An enzyme's structure determines its function, stability, and activity.
An enzyme's structure directly affects its function. Enzymes are proteins made up of chains of amino acids. The specific sequence and arrangement of these amino acids determine the three-dimensional shape of the enzyme, which in turn determines its function. For example, the active site of an enzyme is a small pocket or crevice that allows the enzyme to bind to its substrate and carry out a specific chemical reaction.
The structural characteristics of an enzyme also affect its stability and activity. Changes in temperature, pH, or salinity can alter the shape of the enzyme, rendering it inactive or less efficient. Additionally, certain environmental factors may denature the enzyme, causing it to lose its shape and functionality permanently.
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The answer is true . Many soils can be distinguished from other samples by their color or texture
B. The arrangement of each pair of homologous chromosomes on the metaphase plate during metaphase I is random with respect to the arrangements of other pairs.
C. Sister chromatids separate during anaphase II.
Answer:
A. The two alleles for each gene separate as homologous chromosomes move apart during anaphase I.
Explanation:
Took it in Biology
Glycerol contributes to the formation of a monomer known as a triglyceride, which when linked with other triglycerides, form polymers like fats or oils. This biological process is integral in building structures such as the cellular phospholipid membranes.
Glycerol is one of two molecules that make up a type of monomer specifically called a triglyceride. A triglyceride forms when three fatty acid chains are bound to a glycerol backbone through a process called dehydration synthesis. In this process, glycerol gives up hydrogen atoms from its hydroxyl groups at each bond, and the carboxyl group on each fatty acid chain also gives up a hydroxyl group, releasing a total of three water molecules.
This concept illustrates a basic mechanism in molecular biology - the formation of polymers from monomers, like how a long chain of monomers, called polymers, forms via polymerization. In this case, the monomer is a triglyceride and, when these monomers link together, they can form polymers like fats or oils. This biological process plays a significant role in building various structures in living organisms, such as the phospholipid membranes which are major constituents in cells.
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Answer:
B. Scientists called her Lucy and her pelvis indicates she could walk upright.
Explanation:
The description provided aligns with the characteristics of the famous hominid fossil known as Lucy (Australopithecus afarensis). Lucy's pelvis indicated that she walked upright, and her apelike shoulders and forelimbs were adaptations that might have been retained from a more apelike ancestor. The term "Upright Human" is not commonly used, and the other options do not accurately describe the fossil and its characteristics.