MCQ
Assertion: 'Factors' regulating the characters are found in pairs.
Reason: The dominant characters are even expressed when factors are in heterozygous condition
  • A
    Assertion and reason both are true and the reason is correct explanation of assertion.
  • Assertion and reason both are true but reason is not correct explanation of assertion.
  • C
    Assertion is true but reason is wrong.
  • D
    Assertion and reason both are wrong.

Answer

Correct option: B.
Assertion and reason both are true but reason is not correct explanation of assertion.
B

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

The type of epithelial cells which line the inner surface of fallopian tubes, bronchioles and small bronchi are known as
$A$ : If fertilization occurs, the corpus luteum is rescued from regression by human chorionic gonadotropin, which is produced by placenta.
$R$ : In first trimester the corpus luteum stimulates by $hCG$ is responsible for the production of progesterone.
Select the Incorrect match
Swollen leaf base   -Pulvinus
Lamina   - Green expanded part of leaf
Trimerous   -The floral appendages are in multiple of 5
Rachis   -Represents the midrib of the leaf
Which one of the following statements is correct regarding sexually transmitted diseases $(STDs)$ ?
Mammals have the ability to produce a concentrated urine. Which statement not match with production of concentrated urine ?
(i) The Henle's loop and vasa recta play a significant role in this.
(ii) Concentration of urine occurs by counter current mechanism.
(iii) The proximity between the Henle's loop and vasa recta, as well as the counter current in them increases osmolarity from cortex to medulla.
(iv) Osmolarity increasing from 300 mOsmol L' in the cortex to about 1200 mOsmol L' in the inner medulla.
(v) Osmolarity gradient from cortex to medulla is mainly caused by NaCl and urea.
(vi) Presence of osmolarity gradient helps in an easy passage of water from the collecting tubule thereby concentrating the filtrate (urine).
(vii) Human kidneys can produce urine nearly four times concentrated than the initial filtrate formed.
The function of vaccine is the production and storage of
$A$ : Sickel cell anaemia occurs due to the point mutation.
$R$ : $mRNA$ produced from $Hb(s)$ gene has $GAG$ instead of $GUG$.
Fused vertebrae in human are

$I.$ Sacral

$II.$ Coccygeal

$III.$ Thoracic

$IV.$ Cervical

$V.$ Lumber

Following are the two statements regarding the origin of life.

$(A)$ The earliest organisms that appeared on the earth were non­green and presumably anaerobes.

$(B)$ The first autotrophic organisms were the chemoautotrophs that never released oxygen.Of the above statements which one of the following options is correct?

Doctor's son