Plz define the following
a) Heredity
b) Evolution
c) fossils
d) genetics
e) speciation
f) monohybrid cross
g) dihybrid cross
i) acquired trait
j) inherited trait
Answers
Answer:
Heridity - the passing on of physical or mental characteristics genetically from one generation to another.
Evolution - the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
fossil - the remains or impression of a prehistoric plant or animal embedded in rock and preserved in petrified form.
genetics - the study of heredity and the variation of inherited characteristics.
the genetic properties or features of an organism, characteristic, etc.
plural noun: genetics
"the effects of family genetics on the choice of career"
monohybrid cross - A monohybrid cross is a genetic mix between two individuals who have homozygous genotypes, or genotypes that have completely dominant or completely recessive alleles, which result in opposite phenotypes for a certain genetic trait.
dihybrid cross - Dihybrid cross is a cross between two different lines/genes that differ in two observed traits. According to Mendel's statement, between the alleles of both these loci there is a relationship of completely dominant - recessive traits.
acquired trait - An acquired trait is defined as a characteristic or trait that produces a phenotype that is a result of environmental influence. Acquired traits are not coded in the DNA of an individual and therefore most scientists believe they cannot be passed down to offspring during reproduction.
inherited trait - An inherited trait is a feature or characteristic of an organism that has been passed on to it in its genes. This transmission of parental traits to their offspring always follows certain principles or laws. The study of how inherited traits are passed on is called genetics.
Answer:
(1)the passing on of physical or mental characteristics genetically from one generation to another.
(2) the process by which different kinds of living organism are believed to have developed from earlier forms during the history of the earth.
(3) the remains or impression of a prehistoric plant or animal embedded in rock and preserved in petrified form.
(4) the genetic properties or features of an organism, characteristic, etc.
(5) the formation of new and distinct species in the course of evolution.
(6) A monohybrid cross is a genetic mix between two individuals who have homozygous genotypes, or genotypes that have completely dominant or completely recessive alleles,
(7) Dihybrid cross is a cross between two different lines/genes that differ in two observed traits. According to Mendel's statement
(8) An acquired trait is defined as a characteristic or trait that produces a phenotype that is a result of environmental influence.
(9) An inherited trait is a feature or characteristic of an organism that has been passed on to it in its genes. This transmission of parental traits to their offspring always follows certain principles or laws. The study of how inherited traits are passed on is called genetics.