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Match the following columns and select the correct option. Column-I (a) Placenta (b) Zona pellucida (c) Bulbo-urethral glands (d) Leydig cells Column-II (i) Androgens (ii) Human Chorionic Gonadotropin (hCG) (iii) Layer of the ovum (iv) Lubrication of the Penis
Bundle of His' is a part of which one of the following organs in humans?
When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as:
In Drosophila the XXY condition leads to femaleness whereas in human beings the same condition leads to Klinefelter's syndrome in males. It proves:
Oral contraceptive pills are composed of:
The centriole undergoes duplication during:
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
In a marriage between a male with blood group A and a female with blood group B, the progeny had either blood group AB or B. What could be the possible genotype of the parents?
Match the following sexually transmitted diseases (Column - I) with their causative agent (Column - II) and select the correct option. Column I A. Gonorrhoea B. Syphilis C. Genital Warts D. AIDS Column II i. HIV ii. Neisseria iii. Treponema iv. Human Papilloma Virus
Given below are two statements: Statement I: Failure of segregation of chromatids during cell cycle, resulting in the gain or loss of whole set of chromosome in an organism, is known as aneuploidy. Statement II: Failure of cytokinesis after anaphase stage of cell division resulting in the gain or loss of chromosome is called polyploidy. In the light of the above statements, choose the correct answer from the options given below:
A cross between tall plants was made resulting in offspring of tall and dwarf plants with ratio 3:1. The genotype(s) of both parents are:
A common test to find the genotype of a hybrid is by:
A low frequency recombination indicates that the genes are:
Given below are two statements: Statement I: Mendel studied seven pairs of contrasting traits in pea plants and proposed the Laws of Inheritance. Statement II: Seven characters examined by Mendel in his experiment on pea plants were seed shape and colour, flower colour, pod shape and colour, flower position and stem height. In the light of the above statements, choose the correct answer from the options given below:
Functional megaspore in an angiosperm develops into:
Chromosomal theory of inheritance was proposed by:
Bicarpellary ovary with obliquely placed septum is seen in:
Which of the following is hormone-releasing IUD?
Which one of the following growth regulators is known as the stress hormone?
Stimulation of a muscle fiber by a motor neuron occurs at: