Fill in the Blanks Science Class 10 Chapter 9: Heredity and Evolution
Read the following statements and fill in the blanks with appropriate words:
Broccoli has been developed from ________ cabbage through artificial selection.
__________ speciation occurs in geographically separated populations.
__________ and _____________ proved that life originated from inorganic molecules.
There is no possibility of chemical evolution of life on earth today, because __________.
The study of fossils, a branch of biology called __________ was founded by Goerges Cuiver.
The age of fossil is usually determined by analysing the _________ present in the rock from which fossil is recovered.
Wind of bat and wing of bird are the example of the __________ organs.
The process by which new species develop from existing ones is called _________.
Forelimbs of frog and lizard are the example of the __________ organs.
The analogous organs have similar functions but have __________ structures.
The homologous organs have different functions but have __________ structures.
Tendril of a pea plant and phylloclade of Opuntia are ___________ structures.
The differences from one generation to the other generation are called __________.
Transmission of traits from one generation to the next generation is called ___________.
The chromosome related to determination of sex is called __________.
A test cross can distinguish the pure dominant from the __________ dominant.
Characteristics that are developed during the lifetime of an individual are ___________.
Mendelian factors or genes as well as chromosomes are present in ____________.
The traits which express themselves in F1 generation are called __________.
The genetics is the science of _________ and __________.
DNA segment in a chromosome performing specific function is the __________.
The traits which are acquired by an organism during its lifetime are called ___________.