1.Proteins are linear polymers built of monomer units called amino acids. The construction of a vast array of macromolecules from a limited number of monomer building blocks is a recurring theme in biochemistry. Does protein function depend on the linear sequence of amino acids? The function of a protein is directly dependent on its threedimensional structure.<span>Remarkably, proteins spontaneously fold up into three-dimensional structures that are determined by the sequence of amino acids in the protein polymer. Thus, </span>proteins are the embodiment of the transition from the one-dimensional world of sequences to the three-dimensional world of molecules capable of diverse activities<span>.
</span>2.Proteins contain a wide range of functional groups<span>. These functional groups include alcohols, thiols, thioethers, carboxylic acids, carboxamides, and a variety of basic groups. When combined in various sequences, this array of functional groups accounts for the broad spectrum of protein function. For instance, the chemical reactivity associated with these groups is essential to the function of </span>enzymes,<span> the proteins that catalyze specific chemical reactions in biological systems</span><span>
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Answer:
I believe the options are:
A) The diagram shows crossing over. Crossing over increases the genetic variation of the gametes produced in meiosis, by allowing for different allele combinations than present in the parents. This results in greater diversity in the offspring produced.
B) The diagram shows a chromosome mutation called translocation. Translocation introduces new traits into the gene pool of the gamete by trading genes between nonhomologous chromosomes. This results in greater diversity in the offspring produced.
C) The diagram shows crossing over. Crossing over introduces new traits into the gene pool of the gamete by trading genes between homologous chromosomes. This results in the formation of more diverse gametes.
D) The diagram shows a chromosome mutation called inversion. In inversion, a segment of a chromosome is reversed end to end. Inversion rearranges the genes on a chromosome, providing more diverse gametes.
The correct choice is: A) The diagram shows crossing over. Crossing over increases the genetic variation of the gametes produced in meiosis, by allowing for different allele combinations than present in the parents. This results in greater diversity in the offspring produced.
Explanation:
Crossing Over:
- Crossing over occurs in the Prophase 1 of Meiosis 1.
- By definition, it is the exchange of chromosomal segments between non-sister chromatids of homologous chromosomes.
- Through exchange of genetic segments, crossing over introduces genetic variations in the gametes.
- Genetically variant gametes fuse to produce an individual that varies in characteristics as compared to the parents.
The correct answers are:
1. Lizards;
The animals started to develop traits that would protect them from the natural elements after the lizards. Because of the changes in climate, as well as changes in the functioning of the organism and developing from cold blooded to warm blooded, the animals started to develop feathers and hairs (later becoming a full body fur).
2. Jelly fish;
The Jelly fish is an organism that is very primitive. It has remained largely unchanged throughout the geological time and it seems like it hadn't any real reason to evolve further. It is also one of the oldest species that are still in existence, but also a species that is older even than the hagfish.
I believe the response would be D. Increasing the pH within the cell. This may be the case, because through changing the pH of the cell, the enzyme may form new unwanted interactions, which may affect the arrangement and the structure of the active site, which is will affect the ability of the maltose molecules to bind and undergo the breakdown into glucose molecules.
All enzymes work well or optimally within a given or particular pH. Going above or below will cause additional hydrogen bonds that might form, and other interactions affecting function.
What is a pituitary gland
