Human Reproduction — BIOLOGY STD 12 Science — Question

Sound becomes hazardous noise pollution at level.

Which of the following can be identified by using Pedigree chart?

Assertion : The genetic complement of an organism is called genotype.

Reason : Genotype is the type of hereditary properties of an organism.

One of the following cells secrete hormone.

Which one of the following pairs of organisms are exotic species introduced in India?

Maximum genetic diversity of crop plants occurs where agriculture is:

Suresh and Rajesh have defective haemoglobin due to genetic disorders. In Suresh, the problem is qualitative as he is having incorrectly functioning globin molecules while in Rajesh the problem is quantitative as he is having very few globin molecules. Identify the disorder they are suffering from.

	Suresh	Rajesh
A	Thalassemia - Autosomal Dominant blood disorder	Sickle Cell Anaemia - Autosomal linked Recessive trait
B	Sickle Cell Anaemia - Autosomal linked Dominant trait	Thalassemia - Autosomal Recessive blood disorder
C	Sickle Cell Anaemia – Autosomal linked Recessive trait	Thalassemia – Autosomal Recessive blood disorder
D	Thalassemia - Autosomal Dominant blood disorder	Sickle Cell Anaemia - Autosomal linkedDominant trait

Correct set of processes which decreases the population density are:

Saccharomycescerevisiae is used for commercial production of