Question

Three laws of genetics​

Answer 1

Answer:

Gregor Mendel was an Austrian monk and scientist who lived in the 1800s. He is remembered as the founder of modern genetics for his laws of inheritance, which are based on the results of his experiments with pea plants.

Although Mendel published his work, it didn't get recognized for its importance during his lifetime. It was only once his papers were rediscovered in the early 20th century that scientists realized his findings applied to and explained many observed patterns of inheritance. And the rest is history

Explanation:

Expii

BiologyMendelian Inheritance

Mendelian Genetics — Principles of Inheritance & 3 Laws

The key principles of Mendelian inheritance are summed up by Mendel's three laws: the Law of Independent Assortment, Law of Dominance, and Law of Segregation.

Mendelian Genetics — Principles of Inheritance & 3 Laws

Practice

Explanations (5)

Sylvia Freeman

Text

4

Quick History Lesson:

Gregor Mendel was an Austrian monk and scientist who lived in the 1800s. He is remembered as the founder of modern genetics for his laws of inheritance, which are based on the results of his experiments with pea plants.

Although Mendel published his work, it didn't get recognized for its importance during his lifetime. It was only once his papers were rediscovered in the early 20th century that scientists realized his findings applied to and explained many observed patterns of inheritance. And the rest is history.

This is an illustration of the Austrian monk and scientist Gregor Mendel, who is remembered as the founder of modern genetics for his experiments with pea plants.

Image source: By Sylvia Freeman

Mendel and his pea plants come up a lot for anyone studying either biology or genetics (Punnett squares, anyone?), but the key principles of Mendelian inheritance can be broken down into Mendel's three laws of inheritance:

Law of Independent Assortment

The law of independent assortment says that genes for different traits segregate independently of each other. It means that separate traits are separately inherited. This is because during meiosis the chromosomes line up randomly before the cell divides, allowing for gamete formation.

Law of Dominance

The law of dominance says that there are dominant and recessive traits. Dominant traits are defined as whichever phenotype is expressed in an organism that is heterozygous for the trait.

Law of Segregation

The law of segregation says that everyone has two versions (called alleles) for each trait—one from each parent—and that these alleles segregate randomly (see independent assortment) during meiosis.

Answer 2

$\boxed{\sf \red{★ \: 3 \: Laws \: Of \: Genetics-}}$

• Laws of Genetics are mainly summed & derived by the Scientist : Gregor Johann Mendel.

• These laws were classified into 3 Types :

$\large{\underline{\sf{\blue{★ \: Law \: Of \: Independent \: Assortment-}}}}$

$\longrightarrow$ The Inheritance of one Gene Doesn't affect inheritance of another Gene.

$\longrightarrow$ Genes are different traits & they are sorted.

$\longrightarrow$ Hence, Genes of different traits is not dependent on inheritance of other trait.

$\large{\underline{\sf{\green{★ \: Law \: Of \: Segregation-}}}}$

$\longrightarrow$ Each inherited trait is defined by one Gene pair.

$\longrightarrow$ Parental genes are randomly separted to sex cells.

$\longrightarrow$ Two alleles for each Gene are placed in two different gametes.

$\large{\underline{\sf{\red{★ \: Law \: Of \: Dominance-}}}}$

$\longrightarrow$ An organism having alternate form of a Gene will express form that is dominant.

$\longrightarrow$ It will be happen only when, 2 different alleles are present.

$\longrightarrow$ Only 1 dominant will be expressed.