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(a) Person A has a normal blood pressure i.e., 120/80 mm Hg. Systolic pressure is 120 mm Hg while diastolic pressure is 80 mm Hg.

(b) Person B has an increased blood pressure. Changes that need to be done in life style are :

• Do regular exercise.

• Avoid eating junk and fatty food.

(c) Blood pressure is felt through arteries in the wrist and neck. Blood surge through the arteries each time when the heart beats. This surge is known as pulse.

Aged people also deserve special consideration as children as :

(a) Their muscles shrink and they become weak.

(b) Rate of cell division decreases

(c) The availability of oxygen to the cells decreases

(d) The deterioration of cells increases.

(e) The efficiency of sense organs decreases

(f) The production of energy decreases.

The XY chromosomes of the father determine whether the child is male or female. Child with XX sex chromosomes is female arid with XY sex chromosomes is made. So male sex chromosomes have greater importance than female sex chromosomes in sex determination. So the view of her husband and relatives is wrong.

Difference In Colour

Melanin, a pigment-protein imparts color to the skin. The difference in gene function is the reason for the color difference of skin. This is simply an adaption to live under sun.

Correct option: b) Thymine

Mendel self-pollinated the plants obtained as the first generation.

A candidate key that is not the primary key is called an Alternate Key. For example in Student table if there are two candidate keys – StudId and Stud_Name and StudId is the primary Key then Stud_Name is the alternate key.

Gregor Johann Mendel

a) Uracil 

b) Cytosine 

c) Recessive character

a) One trait is controlled by the combination of two factors.

b) The characters that remain hidden in the first generation appears in the second generation.

a) Transmission of features of parent to offspring.

b) Features seen in offspring that are different from their parents.

c) The branch of science that deals with heredity and variation. 

d) Gregor John Mendel

Data Definition Language (DDL) 

A data definition language or data description language (DDL) is a standard for commands that define the different structures in a database. DDL statements create, modify, and remove database objects such as tables, indexes, and users. Example CREATE, ALTER, and DROP. 

Data Manipulation Language (DML) 

A data manipulation language (DML) is a language that enables users to access and manipulate data in a database. The goal is to provide efficient human interaction with the system. For Example Insert, Update, Delete and Select

(i) Presented by a speaker (full screen) option can be used if the presentation is to be made to an audience . 

(ii) Browsed by an individual is used when the presentation is to be made to an individual 

(iii) Browsed at a Kiosk is used when the presentation is to be given at Kiosk computer terminal.

• Paragraph styles control all aspects of a paragraph’s appearance, such as text alignment, tab stops, line spacing, and borders, and can include character formatting.
• Character styles affect selected text within a paragraph, such as the font and size of text, or bold and italic formats.
• Cell styles include fonts, alignment, borders, background, number formats (for example, currency, date, number), and cell protection.
• Graphics styles in drawings and presentations include line, area, shadowing, transparency, font, connectors, dimensioning, and other attributes.

a) WIMAX: It is a wireless communications standard designed to provide mobile broadband connectivity across cities and countries through a variety of devices 

b) Wi-Fi: It is a popular technology that allows an electronic device such as computers or mobile phones to exchange data wirelessly over a network.

Table: A table is a collection of related data held in a table format within a database. It consists of columns, and rows. 

Primary Key A primary key is a unique value that identifies a row in a table. For example, Student Table contains columns such as Admno, Name, DOB , Address, Phone and Admno can be considered as Primary Key 

Foreign Key: a foreign key is a field or a column that is used to establish a link between two tables. In simple words you can say that, a foreign key in one table used to point primary key in another table.

A primary key is a unique value that identifies a row in a table whereas a foreign key identifies a column or set of columns in one (referencing) table that refers to a column or set of columns in another (referenced) table. A table can have only one primary Key but a table can have multiple foreign keys.

(d) Utility programs includes virus scanning, backup, disk defragmenter software.

i. A customer does not have sufficient time to visit stores 

ii. A product or service that is not available in the local market is available online. (Or any other relevant advantage)

Macros help in saving time in cases when the same set of tasks are to be done repeatedly like formatting or applying a similar formula in a similar range of data. It can be used to name and record a set of actions or set of actions.

b) Document Object Model

DOM stands for Document Object Model.

The correct answer is Esc.

• Esc key does not appear in duplicate on a standard QWERTY keyboard.
• QWERTY is a keyboard design for Latin-script alphabets.
• The name comes from the order of the first six keys on the top left letter row of the keyboard (Q W E R T Y).
• The QWERTY design is based on a layout created for the Sholes and Glidden typewriter and sold to E. Remington and Sons in 1873.

• Esc is a key found on the top-left corner of a computer keyboard.
• It allows the user to abort, cancel, or close an operation.
• For example, if a web page was loading slow on an Internet browser, pressing the Escape key stops the download. 

Text wrapping refers to the relation of graphics to the surrounding text, which may wrap around the graphic on one or both sides, be overprinted behind or in front of the graphic, or treat the graphic as a separate paragraph or character .

Correct option is b. Pixels

Correct option is: D. Both columns and rows

(a) print(Sequences.head(4))

Correct option is (c) Antiseptic

Mixture of chloroxylenol and terpineol is known as Dettol. It acts as an antiseptic

The correct answer is Sodium carbonate.

• A toothpaste is defined as a semi-solid material for removing naturally occurring deposits from teeth and is supposed to be used simultaneously with a toothbrush.
• Toothpaste generally contains the following components:
  • Water (20–40%)
  • Abrasives (50%) including aluminum hydroxide, calcium hydrogen phosphates, calcium carbonate, magnesium carbonate, silica, and hydroxyapatite.
  • Fluoride (usually 1450 ppm) mainly in the form of sodium fluoride.

NGT : National Green Tribunal

Correct option is (2) Small change in minority charge carrier produces high value of current in reverse bias.

The Correct answer is: (d) VDD

(c) High-current devices

(d) Two SCRs in parallel

The Correct answer is: (d) Light

(c) Has a positive temperature coefficient

(d) Bidirectional device

(c) A switch

(b) Aids the original change

The correct answer is: (c) pnpn diode

The correct answer is: (b) 0.7 V

(d) Positive feedback

The correct answer is: (c) Low-current drop out

(c) Breakover

(b) False triggering

The correct answer is: (b) Linear

(c) Nonlinear

The Correct answer is: (a) Breakover

The answer is: (c) 2 V

The answer is: (b) 1mV

(a) Shunt regulator