Answer:
A. inheritance and reproduction
Explanation:
These two terms are interrelated as the act of one (reproduction) gives rise to the other (inheritance). The process whereby offsprings are produced using gametes (sexual reproduction) or without gametes (asexual reproduction) from a an organism called the parent is called REPRODUCTION. Reproduction is necessary to ensure the survival of a particular species.
During reproduction, the genetic material (DNA) in form of chromosomes of an organism is passed down from parents to offsprings in a process called INHERITANCE or HEREDITY. The information needed for certain processes like growth, reproduction, survival and others are contained in the genetic material, and are transferred from the parents to their progenies.
In sexual reproduction, this biological information encoded in the genetic material is passed on via gametes produced by each parent (male and female) during meiosis.
They all develop gills, slits and tails
Answer:
i) Glucose
ii) β(1-4) glycosidic bonds.
iii) Oxygen
Explanation:
Cellulose is an important structural carbohydrate found in plants. It forms a major component of the plant cell wall.
Cellulose is a polysaccharide formed by monomers of glucose. These glucose monomers are joined together by covalent bonds called β(1-4) glycosidic bonds, which means that the 1st carbon of one glucose is bound to the 4th carbon of the next glucose. To make this arrangement, every other glucose molecule in cellulose is inverted, which you can see in the diagram.
Glucose monomers contain carbon, hydrogen, and oxygen only. If you look at the pattern of the molecule (remembering every second glucose is inverted), you can see that Z must be O.
The functional group denoted by Z is oxygen. The OH groups on the glucose from one cellulose chain form hydrogen bonds with oxygen atoms on the same or on another chain, holding the chains firmly together and forming very strong molecules - giving cellulose its strength.
Duchenne muyscular dystrophy is caused by a mutation on the X chromosome, so a male gets it from his mother's X, if she is a carrier. The male child gets a Y and no X from his father, so the disease is always transmitted through the X from the mother. If a female gets Duchenne muscular dystrophy she has to have two X chromosomes, one from a carrier mother and another from from an affected father. This is virtually impossible because most males die before childbearing age and there is no way a female child can get an X from a man who does not live long enough to procreate. About eight percent of carrier women do show some muscle weakness, but they do not have the disease.
