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Presence of an additional copyof X-chromosome resulting in 45+XXY, Karyotype.

Individual process feminine pitched voice and faminine characters, accompained by development of breasts.

● Immediate effect − Vandalism, violence, and reckless behaviour 

● Drop in academic performance, lack of interest in personal hygiene, rebellious behaviour, and change in eating and sleeping patterns, weight and appetite fluctuations 

● Mental, psychological, and financial loss not only to the user, but also to his family 

● Those who take drugs intravenously have a high risk of acquiring deadly diseases such as AIDS and hepatitis B. 

● Damage to nervous system and liver (cirrhosis) Ultimately, prolonged use of alcohol/drugs leads to coma and death.

Klinefelter syndrome (sometimes called Klinefelter's, KS or XXY) is where boys and men are born with an extra X chromosome. Chromosomes are packages of genes found in every cell in the body. Two types of chromosome, called the sex chromosomes, determine the genetic sex of a baby. 

Genetially modified organisms are plants, bacteria, fungi and animals whose genes have been altered by manupulation. This adds extra beneficiary traits or charactes to the organisms. e.g. Enhave nutritional value of disease resistance etc.

Amoebiasis or amoebic dysesntry is a disease caused by intestinal endoparasite, entamoeba nistolytiea. Infection is caused due to infectious food or water.

Symptomes are:

(a) Abdominal pain (b) Constipation

Entamoeba histolytica is a protozoan parasite in the large intestine of human which causes amoebiasis(amoebic dysentery). 

Symptoms of this disease include constipation, abdominal pain and cramps, stools with excess mucous and blood clots. 

Houseflies act as mechanical carriers and serve to transmit the parasite from faeces of infected person to food and food products, thereby contaminating them. Drinking water and food contaminated by the faecal matter are the main source of infection.

A genetically modified organism (GMO) is any organism whose genetic material has been altered using genetic engineering techniques. The exact definition of a genetically modified organism and what constitutes genetic engineering varies, with the most common being an organism altered in a way that "does not occur naturally by mating and/or natural recombination

(d) Total internal reflection

Biopiracy refers to the use of biomsources by resultinational company and other organisation without proper authority from the country and concern people. Generally financially rich country exploit the same for their benefit.

The unethical or unlawful appropriation or commercial exploitation of biological materials (such as medicinal plant extracts) that are native to a particular country or territory without providing fair financial compensation to the people or government of that country or territory. 

A nucleic acid sequence is a succession of bases signified by a series of a set of five different letters that indicate the order of nucleotides forming alleles within a DNA or RNA molecule. By convention, sequences are usually presented from the 5' end to the 3' end. For DNA, the sense strand is used.

Historical records are definitely important. They have high value and are remarkably important because they provide knowledge and information about the past and help in understanding people who lived in the past. They make us understand why we are living the way we are living now and how we lived in ancient times.

Importance of records in history writing:

• Excellent historical writing is logical, well-defined, detailed and engaging.
• Once they have concluded their research, the most qualified historians can create a compelling anecdote that delivers a feeling of the evidence.
• Writing is both a necessary part of the education process and one of the most powerful ways that historians express their thoughts and summing-up to one another.
• The action of writing forces you to bring your experience of a subject and other data that is accessible to you on that topic and assemble it all into a comprehensible and brief portrayal.

The correct option is (b) Balmer series

Correct answer is c. Equity Shares

d. Loan capital of the company

d. electronic mail

c. Retained earnings

a. grapevine

b. Equity shares

Correct option is D) initial

Given statements:

i). All machines consume energy.

ii). Electricity provides energy.

iii). Electrically operated machines are cheap to maintain.

iv) . Electrically operated machines do not cause pollution.

Let us now examine the given inferences:

1) All machines are run by electric energy. → False (as it is possible but not definite)

2) There is no form of energy other than electricity. → False (as it is possible but not definite)

3) Most machines are operated on electric energy. → False (as it is possible but not definite)

4) Electrically operated machines are preferable to use. → True

Hence, 'Electrically operated machines are preferable to use' is the correct answer.

Correct option is B) blunders

• First Generation Computers (1940-1956)
• Second Generation Computers (1956-1963)
• Third Generation Computers (1964-1971)
• Fourth Generation Computers (1971-Present)
• Fifth Generation Computers (Present and Beyond)

First Generation Computers: Vacuum Tubes (1940-1956)

The technology behind the primary generation computers was a fragile glass device, which was called vacuum tubes. These computers were very heavy and really large in size. These weren’t very reliable and programming on them was a really tedious task as they used high-level programming language and used no OS. First-generation computers were used for calculation, storage, and control purpose. They were too bulky and large that they needed a full room and consume rot of electricity.

Main first generation computers are:

• ENIAC: Electronic Numerical Integrator and Computer, built by J. Presper Eckert and John V. Mauchly was a general-purpose computer. It had been very heavy, large, and contained 18,000 vacuum tubes.
• EDVAC: Electronic Discrete Variable Automatic Computer was designed by von Neumann. It could store data also as instruction and thus the speed was enhanced.
• UNIVAC: Universal Automatic Computer was developed in 1952 by Eckert and Mauchly.

Second Generation Computers: Transistors (1956-1963)

Second-generation computers used the technology of transistors rather than bulky vacuum tubes. Another feature was the core storage. A transistor may be a device composed of semiconductor material that amplifies a sign or opens or closes a circuit.

Transistors were invented in Bell Labs. The use of transistors made it possible to perform powerfully and with due speed. It reduced the dimensions and price and thankfully the warmth too, which was generated by vacuum tubes. Central Processing Unit (CPU), memory, programming language and input, and output units also came into the force within the second  generation.

Programming language was shifted from high level to programming language and made programming comparatively a simple task for programmers. Languages used for programming during this era were FORTRAN (1956), ALGOL (1958), and COBOL (1959).

Third Generation Computers: Integrated Circuits. (1964-1971)

During the third generation, technology envisaged a shift from huge transistors to integrated circuits, also referred to as IC. Here a variety of transistors were placed on silicon chips, called semiconductors. The most feature of this era’s computer was the speed and reliability. IC was made from silicon and also called silicon chips.

A single IC, has many transistors, registers, and capacitors built on one thin slice of silicon. The value size was reduced and memory space and dealing efficiency were increased during this generation. Programming was now wiped out Higher level languages like BASIC (Beginners All-purpose Symbolic Instruction Code). Minicomputers find their shape during this era.

Fourth Generation Computers: Micro-processors (1971-Present)

In 1971 First microprocessors were used, the large scale of integration LSI circuits built on one chip called microprocessors. The most advantage of this technology is that one microprocessor can contain all the circuits required to perform arithmetic, logic, and control functions on one chip.

The computers using microchips were called microcomputers. This generation provided the even smaller size of computers, with larger capacities. That’s not enough, then Very Large Scale Integrated (VLSI) circuits replaced LSI circuits. The Intel 4004chip, developed in 1971, located all the components of the pc from the central processing unit and memory to input/ output controls on one chip and allowed the dimensions to reduce drastically.

Technologies like multiprocessing, multiprogramming, time-sharing, operating speed, and virtual memory made it a more user-friendly and customary device. The concept of private computers and computer networks came into being within the fourth generation.

Fifth Generation Computers

The technology behind the fifth generation of computers is AI. It allows computers to behave like humans. It is often seen in programs like voice recognition, area of medicines, and entertainment. Within the field of games playing also it’s shown remarkable performance where computers are capable of beating human competitors.

The speed is highest, size is that the smallest and area of use has remarkably increased within the fifth generation computers. Though not a hundred percent AI has been achieved to date but keeping in sight the present developments, it is often said that this dream also will become a reality very soon.

In order to summarize the features of varied generations of computers, it is often said that a big improvement has been seen as far because the speed and accuracy of functioning care, but if we mention the dimensions, it’s being small over the years. The value is additionally diminishing and reliability is in fact increasing.

ye app maderchod hein✓✓™®

Answer is :

30

-> print(L[2:5]) will return the items from position 2 to 5.

-> Remember that the first item is at position 0, and note that the item in position 5 is NOT included.

So, the output will be [6,82,5]

Comma Separated Value

Answer is:

b) T[2]= -29 (as tuple is immutable)

Answer is:

c) **

The farmer's wife resolves (decides) to live to take care of her children, 'The harvest of her womb'. She does not want to abandon them to the wind like worm-eaten cotton pods. She, with her all courage, embraces life and teacher her children not to embrace death, but to bravely face life and its struggles.

 The children are very happy today, aren’t they.

Answer: (c) Avast

A mail or message sent to a large number of people indiscriminately without their consent is called spam.

The boys were saving money, weren't they?

Were the boys saving money?

Parents and those who work with them may not always realize how early children begin developing a sense of differences based on race, culture and language. The process of forming an identity begins at birth, as children absorb who they are from those around them. In the first few hours they can tell one smell from another, one voice from another---and they prefer their mother’s. Attachment is part of the process of identity formation. As infants grow emotionally close to certain people, they associate them with how those people smell, touch, sound, and are able to recognize their “special people” early on. 

After several months, children come to distinguish “strangers.” In the process, babies become astute observers of differences and similarities. When infants engage with others, they receive messages about who they are from others’ reactions. They develop their sense of being valued and being cared for from those interactions. They begin to imitate and later identify with others in their lives. 

In diverse families and communities, children come to expect a degree of variation in how people look, feel and sound, viewing such variation as normal. They understand their world is comprised of both high and deep voices, dark skins and light ones. Children spending their early years in more homogeneous families and communities come to associate the human face, voice and touch with a particular skin color or tone. 

There is plenty of anecdotal evidence of very young children reacting to racial differences when they first encounter them. For example, Robin arrived from Hong Kong at 23 months of age. She showed no anxiety around Asian or white people, in the airport or at home. But when she first met her African American doctor, her eyes opened wide with shock. It seemed that this was the first Black person Robin had seen in her life.

Useful information for everyone.

The update command can be used to makes changes in the rows of a table in SQL.

Correct option is C) when the festival was due to start

Correct option is B) they should go out for dinner

To, 

 The Headmaster Patna High School 

 Patna 

Sub. :- Application for three days leave. 

R/Sir, I am student of class X. Sir, I was absent in my class from 12.12.2018 to 14.12.2018 due to viral fever and excessive headache.

Sir, I therefore, request you to grant me three days leave. I will be highly obliged to you for this concern. 

Thanking you. 

Your's faithfully 

 Avinash 

The above picture shows the present situation. To balance the environment both plants and animals are necessary. Now-a-days number of plants (trees) are decreasing and on the other hand the animal including human population is increasing in the alarming way. If forests are destroyed, no rainfall at all even the plants are not there, how do we get oxygen which is necessary for our existance. No climate at all. If plants are not exist how do we get food, this is-also our basic need. Therefore no forest means no life on the earth. So all of us beware of forest. We should conserve forest.

(i) They said that they were ready to do everything for their country. 

(ii) Chunnu asked if I would like tea or coffee. 

(iii) The saint wished that God might grant him a long life. 

(iv) He said that a sincere labour never goes in rain. 

(i) have 

(ii) am going 

(iii) have