Answer:
Open populations occur when the total population is dynamic, with new members leaving and being added over time. ... Closed populations occur when the members of population are fixed and no new members are added or lost from the group (except through birth and death
Explanation:
hope this helps also dont fprget to thank me
an organic compound consisting mostly of chains of carbon compounds.
Answer:
Solid substance A has a melting point of 100 degrees Celsius. In this case, the substance is in the liquid state at 115 degrees Celsius. Liquid substance B has a freezing point of 110 degrees Celsius. In this case, once it reaches 115 degrees Celsius, the substance is still a liquid.
Hope it helped! <3
Explanation:
Answer:
an Aneuploidy
Explanation:
Aneuploidy is the presence of an abnormal number of chromosomes in a cell
Answer:
D. All of the statements are true.
Explanation:
Alpha helical secondary structure of proteins is stabilized by hydrogen bonding. The hydrogen bond is formed between a hydrogen atom attached to the electronegative N atom of the peptide bond and oxygen atom of the carboxyl group of the fourth amino acid towards the N terminal of that peptide bond. This internal hydrogen bonding makes the alpha-helices stable structures.
The N atom of protein is a part of a rigid ring and does not permit the free rotation and does not have the H atom to participate in the internal hydrogen bonding. It rather produces a kink in the alpha helix. Glycine has one H atom as its R group and its smaller size makes the alpha helix to assume a coiled structure. Therefore, proline and glycine destabilize the alpha-helices. Alanine, leucine, lysine, etc allow the optimum hydrogen bonding of alpha helices and are frequently found in the alpha-helices. The polypeptide backbone in alpha-helices assumes a helical structure. In beta conformation, the backbone of the polypeptide is extended into the zigzag pattern line a waffle fry.
Beta sheets are stabilized by hydrogen bonds formed between the adjacent parts of the polypeptide chains. The adjacent polypeptide chains may be present in parallel or antiparallel pattern, depending on the same or opposite orientation of amino and carboxyl groups. The antiparallel conformation has opposite amino-to-carboxyl orientations, allowing the formation of linear hydrogen bonds between the adjacent polypeptides which in turn makes these confirmations more stable.
