CBSE Class 12 - Biology - Chapter - Genetics (MCQs for AIPMT/NEET) (#cbsenotes)

Genetics 

CBSE Class 12 - Biology - 

(MCQs for AIPMT/NEET)

Q1: Removal of introns and joining the exons in a defined order in a transcription unit is called

(a) Splicing
(b) tailing
(c) transformation
(d) capping


Q2: Klinefelter’s syndrome is indicated by an XXY sex chromosome combination. This abnormality is due to:

(a) gene deletion.
(b) gene duplication.
(c) gene translocation.
(d) non-disjunction.


Q3: Molecular basis of organ differentiation relies on modulation in transcription by

(a) RBA polymerase
(b) ribosome
(c) anticodon
(d) transcription factor

CBSE Class 6 - Maths - CH1 - Knowing Your Numbers (NCERT Ex 1.3) (#cbsenotes)

Knowing Your Numbers 

CBSE Class 6 - Maths - CH1 - NCERT Ex 1.3 Answers

Q1. Estimate each of the following using general rule:
(a) 730 + 998 
(b) 796 – 314 
(c) 12,904 +2,888 
(d) 28,292 – 21,496


Answer:
(a) 730 round off to     700
998 round off to 1000
──────
Estimated sum =  1700
──────

(b) 796 round off to   800
314 round off to 300
──────
Estimated sum = 500
──────

(c) 12904 round off to 13000
2888 round off to   3000
──────
Estimated sum  = 16000
──────

(d) 28292 round off to      28000
21496 round off to  21000
 ──────
      Estimated difference = 7000
 ──────

CBSE Class 12 - Physics - Electrostatic Potential and Capacitance (Short Q and A) (#cbsenotes)

Electrostatic Potential and Capacitance 

CBSE Class 12 - Physics 

(Short Q and A)

Q1: Define Electrostatic Potential.

Answer: The electrostatic potential at a point is defined as amount of work done per unit positive test charge in moving the test charge from infinity to that point against the electrostatic force due to the electric field.
Q4: Is electric potential a scalar quantity or vector quantity?

Q2: Name the physical quantity whose SI unit is Joule coulomb⁻ⁱ?

Answer:  Electric potential


Q3: Does the electric potential increase or decrease along the electric line of force?

Answer: It decreases along the electric line of force.


Q4: Is electric potential a scalar quantity or vector quantity?

Answer: Scalar quantity

CBSE Class 10 - SA2 Science Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 10 - SA2 Science Sample Question Paper (2016-17)

☛See Solutions here.

CBSE Class 10 - SA2 Hindi(B) Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 10 - SA2 Hindi(B) Sample Question Paper (2016-17)

CBSE Class 10 - SA2 German Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 10 - SA2 German Sample Question Paper (2016-17)

CBSE Class 9 - SA2 Mathematics Sample Question Paper (2016-17) (set-2) (#cbsepapers)

CBSE Class 9 - SA2 Mathematics Sample Question Paper (2016-17)

CBSE Class 9 - SA2 Mathematics Sample Question Paper (2016-17)(#cbsepapers)

CBSE Class 9 - SA2 Mathematics Sample Question Paper (2016-17)

CBSE Class 9 - Mathematics - CH 14: Statistics - Important Points

Statistics - Important Points

CBSE Class 9 - Mathematics 

① In statistics we study collection, presentation analysis and interpretation of data.

② Facts or figures collected with a definite purpose are called data.

③ Data are fundamental. Statistical tests are performed on raw not manipulated data.

④ The number of times an observation occurs in the given data is called frequency of the observation.

⑤ Class intervals are the groups in which all observations are divided.

CBSE Class 6 Maths - Knowing Our Numbers - NCERT Ex 1.2 (#cbsenotes)

Knowing Our Numbers 

NCERT Ex 1.2 Solutions

CBSE Class 6 Maths 

Q1. A book exhibition was held for four days in a school. The number of tickets sold at the counter on the first, second, third and final day was respectively 1094, 1812, 2050 and 2751. Find the total number of tickets sold on all the four days.

Answer:
Number of tickets sold on first day = 1,094
Number of tickets sold on second day = 1,812
Number of tickets sold on third day = 2,050
Number of tickets sold on fourth day = 2,751
────────
Total tickets sold = 7,707
────────
∴ 7,707 tickets were sold on all the four days.


Q2: Shekhar is a famous cricket player. He has so far scored 6980 runs in test matches. He wishes to complete 10,000 runs. How many more runs does he need?

Answer:
Runs to achieve = 10,000
Runs scored =    – 6,980
      ────────
Runs required  = 3,020
             ────────

∴ he needs 3,020 more runs.