Biology Volume-5(Zoology-I)



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Contents

Reproductive health Problems


Description: Reproductive health issues include STDs, infertility, hormonal imbalances, menstrual disorders, and reproductive cancers, impacting physical and emotional well-being.


Methods of Contraception


Description: Contraceptive methods include barrier (condoms), hormonal (pills), intrauterine devices, sterilization, and natural methods to prevent pregnancy


Modern technology


Description: Modern reproductive technology includes IVF, surrogacy, genetic screening, and gamete donation, aiding fertility treatments and addressing reproductive challenges.


Mendel's Laws of Inheritance


Description: Mendel's laws describe inheritance: segregation (traits separate) and independent assortment (traits inherited independently) governing genetic inheritance in offspring.


Incomplete Dominance & Codominance


Description: Incomplete dominance: alleles blend, producing an intermediate phenotype. Codominance: both alleles express fully, resulting in a combined phenotype with distinct traits.


Pleotropic gene and Sex determination


Description: Pleiotropic genes influence multiple traits. Sex determination involves chromosomes (XX for female, XY for male) regulating biological sex development.


Pedigree Analysis Of Genetic disorders


Description: Pedigree analysis tracks inheritance patterns of genetic disorders through generations, helping understand disease transmission and risk assessment in families.


Structure of DNA


Description: DNA is a double helix made of nucleotides, comprising a sugar-phosphate backbone and nitrogenous bases (A, T, C, G).


Regulation of Gene Expression & HGP


Description: Regulation of gene expression controls when and how genes are activated. The Human Genome Project mapped and sequenced all human genes.


Human Reproduction


Description: Human reproduction involves the fusion of a sperm and egg during sexual intercourse, leading to fertilization, pregnancy, and childbirth.


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