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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
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 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 probability of four sons to a couple is:
A genetic map is one that:
In a cross between a male and female, both heterozygous for sickle cell anaemia gene, what percentage of the progeny will be diseased?
The best example of pleiotropy is:
Alleles are:
XO type of sex determination can be found in:
The linkage map of the X-chromosome of fruitfly has 66 units, with yellow body gene (y) at one end and bobbed hair (b) gene at the other end. The recombination frequency between these two genes (y and b) should be:
The chromosomal theory of inheritance was proposed by:
If Adenine makes 30% of the DNA molecule, what will be the percentage of Thymine, Guanine and Cytosine in it?