Evolution & Genetics
Description: This test contains certain questfor medical aspirants.ions based on evolution & genetics which are highly helpful | |
Number of Questions: 25 | |
Created by: Ashok Pandey | |
Tags: Genes heredity Mendel haemophlilia primates catastrophism linkage variations etc Gene Expression and Regulation Regulation of Gene Expression Inheritance Pattern of Haemophilia and Blood Groups in Human Beings Genetics and Evolution Chromosomal Theory of Inheritance |
In an experiment, it was discovered that there was a single human gene responsible for all of the various forms of physical destruction associated with diabetes, it would be referred as
A regulator gene can
Incompletely penetrant genes are expressed in
Which among the following does not characterise polygenic traits?
If a single pair of alleles determines the number of fingers for an animal species and homozygous dominant individuals have 8 fingers, heterozygous ones have 7, and homozygous recessive ones have 6, the inheritance pattern would be referred to as
Few individuals are AB blood types of the ABO blood system. They posses all the features of both type A and type B blood but they are not a blend of them. This is due to the
The genes for a trait are inherited by son & daughter of a couple but only show up in the phenotype of daughter, they are referred to as
Angelman syndrome is a severe form of mental retardation which depends upon the gender of the parent from whom they are inherited. This unusual kind of inheritance pattern is known as
If there was a gene for beauty in the body but the effect of this gene is altered by the inheritance of another gene, the latter gene is referred as
What would a gene be called if it is inherited by both the parents but expressed differently in the phenotype of son and daughter?
The monozygotic twins may not have identical phenotypes because
The interaction between different genes is termed as
Which of the following can be regarded as an exception to Mendel's concept that genes are passed on, unchanged, from one generation to other?
Pick out the true statement regarding the karyotype analysis.
The nature of an unborn child having severe genetic defect such as mental retardation, can frequently be detected by sampling
In a family, having a history of genetic disorders, knowing the sex of a foetus can be important because
In medical science, amniocentesis is an advanced technique which involves the sampling of
The advanced medical techniques like amniocentesis, chorionic villi sampling, and alpha-fetoprotein sampling are mainly done for determining
An individual only has one X chromosome and no Y chromosome in his somatic cells. Such a condition is
Karyotyping can be done from
Which among the following is a characteristic of individuals suffering from Down syndrome?
A female is suffering from unusually short height (average 4'7), webbed neck, & lacks all feminine secondary sexual characteristics. This chromosomal abnormality is caused by
Pick out the true statements regarding the sex chromosome abnormalities in humans.
Which among the following chromosomal abnormalities causes male to have feminine body contours with bigger breasts; small penis and prostate gland with relatively little body hair and impotency?
Down syndrome involves an abnormality of chromosome pair number