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Consider the two surgical procedures (A and B) given below and choose the correct statement:
The flowers are Zygomorphic in: (a) Mustard (b) Gulmohur (c) Cassia (d) Datura (e) Chilli Choose the correct answer from the options given below:
Experimental verification of the chromosomal theory of inheritance was done by:
Match the terms in Column-I with their description in Column-II and choose the correct option. Column-I A. Dominance B. Codominance C. Pleiotropy D. Polygenic inheritance Column-II 1. Many genes govern a single character 2. In a heterozygous organism, only one allele expresses itself 3. In a heterozygous organism both alleles express themselves fully 4. A single gene influences many characters
Select the correct statement/s with respect to mechanism of sex determination in Grasshopper. A: It is an example of female heterogamety B: Male produces two different types of gametes either with or without X chromosomes. C: Total number of chromosomes (autosomes and sex chromosomes) is same in both males and females. D: All eggs bear an additional X chromosome besides the autosomes. Choose the correct answer from the options given below:
Sickle cell anaemia is due to:
Which of the following occurs due to the presence of autosome linked dominant trait?
The best example of pleiotropy is:
In a plant, red fruit (R) is dominant over yellow fruit (r) and tallness (T) is dominant over shortness (t). If a plant with RRTt genotype is crossed with a plant that is rrtt, what percentage of the offspring will be tall with red fruit?
When a tall pea plant with round seeds was selfed, it produced the progeny of tall plants with round seeds and some dwarf plants with wrinkled seeds. The genotype of the parent is:
Match List - I with List - II List - I (Type of flower) (A) Zygomorphic (B) Hypogynous (C) Perigynous (D) Epigynous List - II (Example) (I) Mustard (II) Plum (III) Cassia (IV) Cucumber
How many pairs of contrasting characters in pea plants were studied by Mendel in his experiments?
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement:
Which of the following is the example of a sex-linked disease:
The hilum is a scar on the:
In which genetic condition, each cell in the affected person, has three sex chromosomes XXY?
Choose the mismatched pair of leaf character with its example:
Example of an edible underground stem is:
If a female individual is with small round head, furrowed tongue, partially open mouth and broad palm with characteristic palm crease. Also the physical, psychomotor and mental development is retarded. The karyotype analysis of such an individual will show :
Which of the following are not the effects of Parathyroid hormone? (a) Stimulates the process of bone resorption (b) Decreases Ca2+ level in blood (c) Reabsorption of Ca2+ by renal tubules (d) Decreases the absorption of Ca2+ from digested food (e) Increases metabolism of carbohydrates