Category Class 12

Pedigree Analysis

Pedigree AnalysisInheritance of hundreds of characteristics such as colour blindness, hemophilia, polydactyly, attached earlobes and tongue rolling, have been studied generation after generation in particular families of human beings. In order to understand the pattern of inheritance, a family tree…

Down’s and Patau’s Syndrome

Down’s and Patau’s Syndrome Chromosomal abnormalities are responsible for miscarriages and stillbirths. Down’s syndrome and Patau’s syndrome are trisomy disorders, where the individuals have three copies of a chromosome rather than the normal two. Patau’s syndrome (Trisomy of 13th chromosome), is…

Klinefelter’s And Turner’s Syndrome

Klinefelter’s And Turner’s SyndromeKlinefelter’s syndrome(KS) (47XXY or XXY) and Turner’s syndrome(TS) (45X or X0) are common cases of sex chromosome aneuploidy (SCA). In humans, with an approximate occurrence of KS is 1 in 600 males and TS is 1 in 2,000 female livebirths. Let us understand the…

Principles Of Inheritance And Variation

Principles Of Inheritance And Variation Mendel’s laws for inheritance of traits Mendel has put forth three laws governing inheritance:1. Law of dominance: Out of a pair of contrasting characters present together, only one is able to express itself while the…

In-vitro Fertilization (IVF)

In-vitro Fertilization (IVF)IVF is a type of assisted reproductive technology (ART) that can help an infertile couple bear child. This process refers to fertilizing egg and sperm in laboratory under monitored condition and the zygote or early embryo is then…

Family Planning

Family PlanningThe problem of population explosion is grave is India. To tackle this issue, the government had taken taken several steps and have launched family planning programmess. As a part of this initiative, TV ads were also telecasted to spread…

Surrogacy

SurrogacyWell! Every couple dreams to have a child of their own. But unfortunately, not everyone is completely healthy to carry a child. There may be several reasons for it. But what is the solution? Can their dream of having a…

Reproduction Health- Tricks to learn

1 Still trying to recollect what caused the rapid increase in population of India? Well, the population probably told to Mary-Dear Mary I‘m Ready to grow (DMIR). 2 Too many types of contraceptive methods puzzling you? Remember them easily by the mechanism of…

Artificial Reproductive Technologies (ARTs)

Artificial Reproductive Technologies (ARTs)These techniques help the childless/infertile couple bear child. Various types of ARTs include: In-vitro fertilization (IVF): Sperms & egg are fertilized in laboratory under simulated conditions, which is followed by embryo transfer into the uterus. Zygote intra-fallopian transfer…

Surgical Methods of Contraception

Surgical Methods of ContraceptionSurgical contraceptive methods are irreversible methods of contraception and hence known as sterilization techniques. These may be performed on both males and females. These methods involve cutting and tying a part of reproductive ducts that ultimately prevent the…

A Person Who Has Contracted HIV Will Get AIDS!

A Person Who Has Contracted HIV Will Get AIDS!HIV stands for Human Immunodeficiency Virus. So HIV is the virus that attacks a person’s immune system making him/her prone to infections. On the other hand, AIDS i.e. Acquired Immunodeficiency Syndrome is the medical condition caused…

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