STD 12 - 6. evolution — NEET STD 11 Science — Question

In birth control methods, which one is an intra-uterine device?

It is not part of digestive system of cockroach

Hypothalamus is a part of brain but also secrete some hormones. Which of the following characters are correct for hypothalamus ?
(i) These hormones regulate the synthesis and secretion of pituitary hormones.
(ii) The hormones produced by hypothalamus are of two types, the releasing hormones and the inhibiting hormones.
(iii) Gonadotropin releasing hormone (GnRH) is a releasing hormone.
(iv) Somatostatin is a releasing hormone.
(v) Hormones of hypothalamus reach the anterior pituitary gland through a portal circulatory system.
(vi) The posterior pituitary is under the direct neural regulation of the hypothalamus.

How many characters are true regarding incomplete dominance from given.
(i) F₁ phenotype not resembles either of the two parents and is in between the two.
(ii) The inheritance of flower colour in the dog flower is an example of it.
(iii) In a cross between true-breeding red-flowered (RR) and true breeding white-flowered plants (rr), the F₁. (Rr) is pink.
(iv) When the F₁. of red-flowered (RR) and white- flowered (rr) plants is self -pollinated, the F₂ resulted in the ratio 1 (RR) Red: 2 (Rr) Pink: 1 (rr) White.
(v) Here the genotype is same as mendalian monohybrid cross.

Select the correct matching of the type of the joint with the example in human skeletal system:

Cuboidal epithelium with brush border of microvilli is found in :

Mark the mismatched pair :

Mendel's contribution for genetic inheritance was