1. Fill in the blanks:
(a) The total number of chromosomes in a human cell is 46.
(b) Phenylketonuria causes mental retardation (or brain damage).
(c) Genetic disorder due to presence of additional X-chromosome is Klinefelter’s syndrome.
(d) Genetic constitution of an organism is called genotype.
(e) August Weismann proposed that nuclei are the bearers of hereditary characters.
(f) Gregor Mendel was known as the father of genetics.
2. What is frameshift mutation?
Ans:) A frameshift mutation is...
1. What is the first infective stage of malarial parasite in man?
Answer: Sporozoite
2. What is HIV?
Answer: HIV is a virus that causes AlDS by destroying the immune system.
3. Which bacteria causes typhoid?
Answer: Salmonella typhi.
4. What are the different types of barriers in innate immunity?
Ans:) Innate ir immunity includes the following types of barriers:
1. Physical barriers - Skin and mucous membranes prevent entry of pathogens.
2. Physiological barriers - Acid in stomach, tears, saliva...
Q1: What message was given by first education minister to the first educational conference? “He gave the top priority to the spiritual element in education. He says, if this element is ignored, it can have dangerous and devastating consequences. The tragedy of modern education is in the result of two World Wars. These Wars and scientific inventions have given us this lesson that if development 2 of human morality and spirituality are ignored then scientific development destruct humankind badly”.
1. HoW can you determine the age of a fossil fuel
Ans:) The age of fossil iS determined by adiocarbon (C-14) dating.
2. What is protovirus?
Ans:) A protovirus iS viral DNA integrated into the genome of a host cell
3. What were the raw materials used in Miller's experiment?
Ans:) The raw materials were methane, ammonia, hydrogen and water vapour.
4. What is hidden hunger?
Ans:) Hidden hunger is a condition caused by a deficiency of essential vitamins and minerals in the diet.
5. HoW are theo ages f
Database Management System (DBMS)
A software package/system to facilitate the creation and maintenance of a computerized database.
How Data is stored in DB?
Tables (Rows & Columns)
How tables relate to one another
Tables in a database relate to each other using keys:
Primary Key (PK): Uniquely identifies a row in a table.
Foreign Key (FK): Links one table to another.
What is a record in a table?
(also called a row) is a single entry that contains data for each column in the table.
A constraint
a rule...
Definition:
A mainframe architecture is a centralized computing model where a large, powerful computer performs all processing and users access it through dumb terminals.
Key Points:
Expensive and large systems
Time-sharing introduced
Dumb terminals had no processing power
Definition:
Client–server computing is a model where client machines perform some processing while servers handle...
9.1-Д 2-А 3-Б 4-В
1(a) Education as a Process: Education is a dynamic, lifelong journey where a person’s behavior is modified through experience. It is not just a destination (degree) but a continuous process of growth.
1(b) School as a Miniature Society: John Dewey called school this because it reflects the real world. Students learn social rules, cooperation, and diversity on a small scale before entering adult society.
1(c) Balanced Curriculum: A curriculum that gives equal importance to all aspects of...
8.56 Consider the data displayed in Exercise 1.20 on page 31. Construct a box-and-whisker plot and comment on the nature of the sample. Compute the sample mean and sample standard deviation. 8.57 If X1, X2,...,Xn are independent random variables having identical exponential distributions with parameter θ, show that the density function of the random variable Y = X1+X2+···+Xn is that of a gamma distribution with parameters α = n and β = θ. 8.58 In testing for carbon monoxide in a certain brand...