STD 11 - 7. Structural organisation in animal — NEET STD 11 Science — Question

$(a)$ $'H'$ zone disappears

$(b)$ $'A'$ band widens

$(c)$ $'I'$ band reduces in width

$(d)$ Myosine hydrolyzes $ATP,$ releasing the $ADP$ and $\mathrm{Pi}$

$(e)$ $Z-$lines attached to actins are pulled inwards Choose the correct answer from the options given below.

$I.$ Haemophilia is a sex-linked recessive disease

$II.$ Down's syndrome is due to aneuploidy

$III.$ Phenylketonuria is an autosomal dominant gene disorder

$IV.$ Phenylketonuria is an autosomal recessive gene disorder

$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder