Use the drop-down menus to determine whether a bacterial example is beneficial or harmful to humans.
coriariaceae coriaria is a species of bacteria that convert nitrogen into a form
usable by plants.
mycobacterium tuberculosis is a species of bacteria that causes the disease tuberculosis
in people.
lactobacillus acidophilus is a species of bacteria that is found in yogurt and can
people improve their digestion.
lactobacillus sanfranciscensis is a species of bacteria that makes the sour flavor in
sourdough bread. it gets its name from san francisco, where a great deal of sourdough bread is
made.
done

Coriariaceae coriaria is a species of bacteria that helps convert nitrogen into a form  usable by plants. beneficial

Mycobacterium tuberculosis is a species of bacteria that causes the disease tuberculosis  in people. harmful

Lactobacillus acidophilus is a species of bacteria that is found in yogurt and can help  people improve their digestion. beneficial

Lactobacillus sanfranciscensis is a species of bacteria that makes the sour flavor in  sourdough bread. It gets its name from San Francisco, where a great deal of sourdough bread is  made. beneficial

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity

an individual’s sex (i.e., whether they are a male or female) is determined by the sex chromosomes. most people have two sex chromosomes, one that is inherited from their mother and one that is inherited from their father. typically, females have two x chromosomes (xx) and males have one x chromosome and one y chromosome (xy). conditions caused by changes (“mutations”) in genes located on the x chromosome are considered x-linked.

x-linked recessive inheritance

most x-linked conditions are recessive. this means that in a person with two x chromosomes (most females), both copies of a gene (i.e., one on each x chromosome) must have a change or mutation whereas in a person with one x chromosome (most males), only one copy of a gene must have a mutation. a female with a mutation in one copy of a gene on the x chromosome is said to be a “carrier” for an x-linked condition. a male with a mutation in a gene on the x chromosome is typically affected with the condition. because females have two copies of the x chromosome and males have only one x chromosome, x-linked recessive diseases are more common among males than females. however, x-linked recessive diseases can occur in both males and females.

for x-linked recessive disorders, an unaffected carrier mother who has a mutation in a gene on the x chromosome can transmit either the x chromosome with this mutation or a “normal” x chromosome to her children. if the father is unaffected, none of her daughters will be affected and all of her daughters will be unaffected—since they will inherit at least one normal x chromosome from their father. however, each daughter will have a 50% chance of being an unaffected carrier like her mother and a 50% chance of both x chromosomes being normal.