Answer:
This question lacks options, options are: A) Heterochromatin and euchromatin
B) Uniform in the genetic information they contain
C) Separated by large sketches of repetitive DNA
D) Each void of typical protein-coding sequences of DNA
E) Void of introns.
The correct answer is A.
Explanation:
The chromatin or substance that makes up the nuclei of cells and that results from the interaction of DNA with histonic and non-histonic proteins and RNA; it can present different degrees of packing or contraction. When chromosomes are stained with chemicals that bind to DNA, densely stained regions and less densely stained regions appear. Heterochromatin are segments of the chromosome that stain strongly and remain visible, practically, during the entire cell cycle. There are few genes in these regions and therefore low transcriptional activity. They are supercondensed regions. Euchromatin are segments of the chromosome that are not visible during telophase and interphase, only in metaphase. It corresponds to regions that are less compact and in which there is a higher gene density.
The salt evaporates in the air thus when it hits the ground
Explanation:
I don't think he provided all the information or some words are misspelled
Answer:
Enzymes are the bio-catalyst produced by the body.
They increases the rate of bio-chemicals reaction taking inside the body.
They form enzyme-substrate complex in order to increase the rate of the reaction.
They are highly specific in nature.
Example:
- Hexokinase catalyses the conversion of glucose to glucose-6-phosphate.
- Salivary amylase catalyses the breakdown of starch into maltose (simpler sachharides).
- Protein kinase is an enzyme used to activate or deactivate other by adding phosphate group to them.
