Which of the following statements is/are correct?
(i) The nucleoplasm and the cytoplasm together make up the protoplasm.
(ii) Chloroplasts are a type of plastids, which occur in plant cells.
(iii) In many multicellular organisms, all cells have projections called cilia and flagella.
(iv) Cell destruction occurs by centrosomes.
A (i) and (ii) only
B (i), (ii) and (iii) only
C (i) only
D (iii) and (iv) only
Magnets lose their properties significantly if
A Left in the open
B Touched with iron
C Dropped from a height repeatedly
D None of these
In a Drosophila, black eye colour is dominant over
brown eye and allele for normal wings is dominant
over allele of vestigial wing. Hybrid obtained in
F1 generation have black eye colour with normal
wing. By selfing of F1 hybrid, total 560 offspring were
obtained in F2 having four different genotypes. How
many flies with black eyes and vestigial wings; and brown eyes with normal wings would be obtained?
What would be their possible genotypes?
A105--- 210--- BBWw--- bbWw
B 105--- 105--- Bbww--- bbWw
C 315--- 35--- BbWw--- Bbww
D 100--- 150--- bbww--- BBww
Pls provide an explanation
A few mixtures are listed in the box.
(i) Salt solution (ii) Oil and water (iii) Alcohol and water (iv) Soda water (v) Iron and sand (vi) Flour and husk (vii) Milk
Now, read the given passage and fill in the blanks by selecting an appropriate option. Mixtures (p) are homogeneous in nature while mixtures (q) are heterogeneous in nature. Mixture(s) (r) is/are separated into its/their components by centrifugation where (s) component collects towards the centre. Mixture (t) is separated into its components by distillation where the component having (u) boiling point gets collected in the receiver flask first.
|A||i, ii, vi||iii, iv, v, vii||ii, v||Heavier||iii||Higher|
|B||ii, iv, vi||i, iii, v, vii||ii, iv||Lighter||vii||Lower|
|C||i, iii, iv||ii, v, vi, vii||vii||Lighter||iii||Lower|
|D||i, iii, vi||ii, iv, v, vii||iv, vii||Heavier||i||Higher|