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

Which of the following is not correct for gene?

Choose the correct statement for Periplaneta americana

In RNAi, the genes are silenced using:

Autorhythmicity is a special property of the muscles of the

Choose correct pair

Which of the following is the vestigial organs of man?

Which statements are true regarding Mendelian disorder ?
(i) Haemophilia is a X - linked recessive trait shows transmission from carrier female to male progeny.
(ii) Haemophilia is a disorder in which a vital factor for clotting of blood is lacking due to this, in an affected individual a simple cut will result in non-stop bleeding.
(iii) The family pedigree of Queen Victoria shows a number of haemophilic descendents as she was a carrier of the disease.
(iv) All type of anaemia is an autosome linked recessive trait.
(v) Sickle-cell anaemia is due to a mutant allele on chromosome 11.
(vi) Sickle-cell anaemia disease is controlled by two pair of allele.
(vii) The mutant haemoglobin molecule of sickle cell RBC undergoes polymerisation under high oxygen tension.

After ovulation, Graafian follicles turns into

Assertion : Hormone calcitonin has antagonistic effect to that of parathormone.
Reason : Calcitonin decreases blood calcium level while parathormone increases blood calcium level.