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The QRS complex in a standard ECG represents
The amount of nutrients, such as carbon, nitrogen, phosphorus and calcium present in the soil at any given time, is referred as :
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement:
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:
In his classic experiments on pea plants Mendel did not use?
In light reaction, plastoquinone facilitates the transfer of electrons from
Which one of the following can be explained as the basis of Mendel's Law of dominance? A: Out of one pair of factors, one is dominant and the other is recessive. B: Alleles do not show any expression and both the characters appear as such in F2 generation. C: Factors occur in pairs in normal diploid plants. D: The discrete unit controlling a particular character is called factor. E: The expression of only one of the parental characters is found in a monohybrid cross.
Independent assortment of genes does not take place when:
What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile?
Study the pedigree chart given below: What does it show?
The best example of pleiotropy is:
Alleles are:
XO type of sex determination can be found in:
Select the correct statement from the ones given below with respect to dihybrid cross:
The chromosomal theory of inheritance was proposed by:
A normal woman, whose father was colour-blind is married to a normal man. The sons would be:
Select the correct statements about sickle cell anemia: A: There is a change in the gene for beta-globin B: In beta-globin, there is a valine in place of Lysine C: It is an example of point mutation D: In the normal gene, U is replaced by A Choose the correct answer from the options given below:
Match List-I with List-II: List-I (Type of cross) (A) Monohybrid cross (B) Dihybrid cross (C) Incomplete dominance (D) Test cross List-II (Phenotypic ratio) (I) 1:1 (II) 1:2:1 (III) 3:1 (IV) 9:3:3:1
Match List-I with List-II.
Which of the following characteristics represent the 'Inheritance of blood groups' in humans?