Answer:
The correct answer is
(b)-Chromosomes are made up of protein and nucleic acid.
(c)-Genes are located on chromosomes.
(d)Chromosomes are found in the nucleus.
Explanation:
DNA coils around a protein molecule present inside the nucleus to form a compact structure called chromosomes. These histone proteins have a positive charge and it neutralizes the negative charge of the DNA.
By 1940 it was known by scientists that chromosomes are made up of protein and nucleic acids and chromosome carries the genetic material but at that time it was thought that protein part of the chromosome is the genetic material.
Then Hershey and Chase experiment in 1952 proved that DNA is the genetic material. Mendel first discovered that traits pass from one generation to another as separate factors. Later the word factor converted into gene in 1909 by Wilhelm Johannsen.
So by 1950, it was known that Chromosomes are made up of protein and nucleic acid, Genes are located on chromosomes, and Chromosomes are found in the nucleus.
The answer is c. The survival of the fittest
<span>(a) movement(b) homeostasis(c) immunity(d) response to stimuli(e) reproduction(f) growth and development
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Answer:
The correct answer is: Social.
Explanation:
- In reference to marketing, Value can be defined as the preference which a customer shows towards one commodity, say A, after analysing and comparing the cost to benefit ratio of the commodity A when compared to another commodity, say B.
- The customer tends to choose commodity A over commodity B only when he gets better benefit from the commodity A as compared to commodity B.
- Value can be divided into four categories:
- Functional Value: Here the customer benefits from the purchase of a commodity as the commodity provides a solution to the customer's need.
- Monetary Value: Here the customer chooses to buy a commodity after getting attracted to the cheaper price at which the commodity is available. This commodity may or may not be beneficial to the customer.
- Social Value: Here the customer chooses to buy a commodity that allows the customer to connect or link with others.
- Psychological value: Here the customer buys a commodity that appeals to his senses and makes him feel good.
- In the given question, as the elimination of "dead zones" in mobile networking area improves the connectivity among people, so this is an example of Social Value.