Haemoglobin (Hb) is a

MCQ

Haemoglobin $(Hb)$ is a

✓

Answer

Correct option: B.

Respiratory pigment

b
Haemoglobin is an iron containing deep red coloured respiratory pigment. It becomes bright red when combined with oxygen.

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Assertion: All locomotions are movements but all movements are not locomotions.
Reason: Hydra can use its tentacles for capturing its prey and also use them for locomotion.

$R-TCT$ is a hypercalcemic hormone

Assertion $A$: Nephrons are of two types: Cortical and Juxta medullary, based on their relative position in cortex and medulla.

Reason $R$: Juxta medullary nephrons have short loop of Henle whereas, cortical nephrons have longer loop of Henle.

In the light of the above statements, choose the correct answer from the options given below:

$(i)$ Due to alteration of $DNA$ sequences genotype is change.

$(ii)$ Changes occur in phenotype.

$(iii)$ Variation create in $DNA$