<span>Crossing over or Chromosomal crossover is the process that
occurs in cells between the stages of phrophase I and metaphase I in meiosis. It is important
because it is responsible in the exchange of genetic material between
homologous chromosomes during sexual reproduction. This process ensures the
normal segregation of chromosomes during meiosis, and genetic variation.
Homologous chromosomes pair up with each other and exchanges segments of their
genetic material to form new chromosomes. Thomas Hunt Morgan described crossing
over in his theory of genetics. </span>
Autosomal recessive is one of several ways that a trait, disorder, or disease can be passed down through families.
An autosomal recessive disorder means two copies of an abnormal gene must be present in order for the disease or trait to develope.
Here's the website where I got this from if you want to know more, hope this helps! :)
Source: https://www.nlm.nih.gov/medlineplus/ency/article/002052.htm
Answer:
By preventing the binding of substrate to active site
Explanation:
Competitive inhibitors exhibit a type of reversible inhibition. These are the substances that bind to the binding site of the substrate on the enzyme, that is the active site.
One the competitive inhibitor is bound to the active site on the enzyme, the substrate cannot bind to it and there is no enzyme-substrate complex formation. Hence, the competitive inhibitor inhibits/slow down the enzyme catalysis by occupying the active site of the enzyme and thereby not allowing the substrate to bind to the enzyme.