Theory ‘of ‘Gradual development of living organisms’ is accepted worldwide. (3) Mutations are of two types, viz. He was awarded the Nobel Prize in 1968 for this work, along with two other scientists. Solution -Maharashtra Board-Class 10- Science-2-Ch-6 -Animal Classification adenine, guanine, cytosine and uracil. }; Important explanation of Theory of natural selection : (1) All living organisms reproduce prolifically. }); There was beginning of ice-age which resulted in scarcity of food. These differences are not easily seen because of similarities of offspring with their parents but there are variations that do exist due to unequal distribution of chromosomes during cell division in sexual reproduction in animals. 5.Ranging diversity in plants : From unicellular Chlorella to the huge banyan tree. mRNA carries the information for protein synthesis from genes on DNA chain in nucleus to the ribosomes in the cytoplasm. Students can solve NCERT Class 10 Science Heredity and Evolution Multiple Choice Questions … (7) During transcription only one of the two strands of DNA is used. in the nucleotide sequences of DNA. (3) In plants, similar characters such as leaf shape, leaf venation, leaf petiole, etc. Concepts covered in Science and Technology Part 2 10th Standard SSC Maharashtra State Board chapter 1 Heredity and Evolution are Heredity and Hereditary Changes, Transcription, Translation and Translocation, Evidence of Evolution, Morphological Evidences, Anatomical Evidances, Vestigial Organs, Paleontological Evidences, Connecting Links, Embryological Evidences, Darwin'S Theory of Natural Selection, Lamarckism, Speciation, Human Evolution, Heredity and Evolution, … The above connecting links prove that arthropods evolved from annelids, amphibians evolved from fish and mammals evolved from reptiles. The other line of evolution gave rise to human like animals around 2 crore years ago. var new_url = wpvl_paramReplace('height', new_url, height); (4) Central Dogma: Synthesis of proteins by DNA through the RNA is called central dogma. /*
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