CBSE Class 12-science Answered
please tell definations of Gene, Alleles, Dominant, Recessive,Heterozygous, Homozygous, Genotype, phenotype,
Asked by rutujasarangmehta | 11 Apr, 2015, 07:13: PM
Expert Answer
Gene- A gene is the molecular unit of heredity of a living organism.
Allele- Pairs or series of genes on a chromosome that determine the hereditary characteristics.
Dominant- Dominant refers to a gene that will present itself by producing a characteristic that can be inherited.An example of a dominant gene is the brown-eyed gene
Recessive- Recessive is defined as a gene with characteristics which are not as strong as those on a dominant gene. An example of a recessive is the gene for blue eyes
Heterozygous- A pair of genes where one is dominant and one is recessive.An example is human blood types
Homozygous- When a cell has two identical copies of a gene. An example of homozygous is a cell containing blue eye genes from both parents
Genotype- The genetic makeup, distinguished from the physical appearance of an organism.
Phenotype- The physical or biochemical characteristics of an organism determined by both genetic makeup and environmental influences
Answered by Sivanand Patnaik | 12 Apr, 2015, 08:32: AM
Concept Videos
-
Mendel's Laws of Inheritance
Principles of Inheritance and Variation, Mendel's Laws of Inheritance -
Mendel's Laws of Inheritance
Principles of Inheritance and Variation, Mendel's Laws of Inheritance -
Mendel's Laws of Inheritance
Principles of Inheritance and Variation, Mendel's Laws of Inheritance -
Mendel's Laws of Inheritance
Principles of Inheritance and Variation, Mendel's Laws of Inheritance
CBSE 12-science - Biology
Asked by ishtiyaqishuuu | 27 Jan, 2023, 07:37: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by gschinubn56 | 03 Sep, 2022, 10:12: AM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by goyalpavitarta | 19 Jul, 2021, 12:06: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by vaishnavi tirunagari | 04 Jun, 2020, 08:10: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by parmaraum8827.12sdatl | 18 Apr, 2020, 01:54: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by sanchitdora5 | 17 Apr, 2020, 12:46: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by sanchitdora5 | 30 Mar, 2020, 10:10: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by sagarlohat17 | 31 Jan, 2020, 06:01: PM
ANSWERED BY EXPERTCBSE 12-science - Biology
Asked by mesweetayushigupta | 13 Oct, 2019, 01:01: AM
ANSWERED BY EXPERT