Posts in Category: genetics

Chromosomal disorders in Human

AIPMT-NEET Biology Aspirants, read out the next AIPMT-NEET Biology Study material/ Notes of Chromosomal Disorders in Human, important for AIPMT-NEET Biology. Free online notes for AIPMT-NEET.

Human cell is diploid (2n; 2 set of n; where n stands for haploid no.). n is 23 in case of human in which 22 are

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Incomplete Dominance

Hey All AIPMT Biology Aspirants, read out the next AIPMT Biology Study material/ Notes of Incomplete Dominance in Genetics, useful for AIPMT Biology.

Law of Dominance states that heterozygote (F1 offspring) having two alleles expresses dominant allele in its phenotype. But in some conditions, this law fails. One such condition is

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Test Cross(if F1 is homozygous)

Test cross

Test Cross

Cross of F1 dominant offspring with its homozygous recessive parent is called a Test cross.

  • Used to determine genotype of F1 offspring, whether it is homozygous or heterozygous.
  • OR, we can say, Cross of an organism with dominant phenotype (and whose genotype is to be

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Mendel’s Seven Pair of Contrasting Characters

AIPMT-NEET Biology Aspirants, read out the next AIPMT-NEET Biology Study material/ Notes of Mendel’s Seven Pair of Contrasting Characters, important for AIPMT-NEET Biology. Free online notes for AIPMT-NEET.
Mendel used Pea Plant and studied SEVEN pair of contrasting traits. Each character has one dominant trait and

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Introduction to Genetics

Hello All AIPMT Biology Aspirants, here is the study material of Genetics.

  • Genetics: It is the science of heredity and variation.
  • Heredity: Transmission of traits from parents to offspring via genetic information.
  • Variation: In biology, the occurrence of differences among individuals.
  • Character: Heritable feature/ attribute that varies among individuals is called character,

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Co-dominance

Hey All AIPMT Biology Aspirants, read out the next AIPMT Biology Study material/ Notes of Codominance, useful for AIPMT Biology.

Another exception to law of dominance is Co-dominance. Co-dominance arises when a heterozygote (F1 offspring) shows characteristics found in each of the associated homozygotes (parents). F1 offspring resembles both parents.

Mendel’s Dihybrid Cross

Hey All AIPMT Biology Aspirants, read about MENDEL’s Dihybrid Cross and Law of Independent Assortment in this study material of AIPMT.

In monohybrid cross, Mendel used plants that differ in only one characteristic. After monohybrid cross, Mendel also performed experiments with plants that differ in two contrasting characters. This cross is

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Mendelian Inheritance

Monohybrid Cross: Cross between parents that are different only in a single characteristic.

  • Only a single trait is studied in monohybrid cross.
  • The first generation of a cross is the P (parental) generation.
  • The offspring from the parents in the P generation are the F1 (filial 1) generation. (Filial- Son)
  • When F1

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Mendel’s Success Story

Hello All AIPMT Biology Aspirants, next important topic in queue is Mendel’s Success Story.

Earlier, plant biologists also produced hybrids but they saw puzzling results and were not able to interpret them correctly. Mendel used mathematical techniques to analyze his crosses, which was ahead of that time and people were not

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