Genetics.Ppt

2,112 views
1,932 views

Published on

Published in: Education, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
2,112
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
30
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Genetics.Ppt

  1. 1. Genetics<br />1<br />
  2. 2. 2<br />DNA replication occurs at mitosis or Meiosis?<br />In replication , the original strand disappears- true / false<br />Genetic code is made up of – chromosomes or base triplets<br />The allele for a character that always appears in<br /> phenotypes is called- dominant / recessive<br />5. The recessive allele is always written in capital / small letters<br />
  3. 3. 3<br />11 Sci write the answers only to the following questions<br />Name the scientist who gave the double helix model of DNA<br />DNA stands for _____________________________ acid<br />How many bases make the DNA?<br />Who controls the functions of the cell?<br />What is genotype?<br />What is phenotype?<br />
  4. 4. 4<br />Write the answers to the questions below only<br />Who is called the father of genetics?<br />A person with black hair has genes Bb. What is his genotype and<br /> phenotype.<br />What is monohybrid cross?<br />The characters which will be in the baby are decided at meiosis or<br /> fertilisation?<br />Two alternate forms of genes is called chromosome or allels?<br />There are 23 pairs of chromosomes in zygote or a gamete?<br />
  5. 5. 5<br />Which cell division is for growth?<br />Which cell division is for reproduction?<br />What are the same looking chromosomes called?<br />What is a gamete and how many chromosomes does this contain?<br />What is zygote how many chromosomes does this contain?<br />Which cell division involves replication?<br />
  6. 6. Genetics terms you should know<br />6<br />Genetics Trait<br />Variation and its types genotype<br />Asexual and Sexual reproduction phenotype<br />Gametes replication<br />Zygote allele<br />Fertilisation Dominant , recessive<br />Embryo alleles<br />Mitosis monohybrid cross<br />Meiosis Pedigree chart<br />Cloning punnet square<br />Chromosome homozygous<br />Homologous chromosomes heterozygous<br />DNA cloning<br />Double helix structure selective breeding<br />Genetic code pollination<br />
  7. 7. 7<br />
  8. 8. Genetics:<br />Branch of science that <br />studies how genes are inherited and<br /> expressed in plants ,animals and <br />human beings<br />8<br />
  9. 9. Variation<br />The genetic variations observed in a species and population.<br />Two types:<br />9<br />
  10. 10. 1)Acquired Variations<br />The variations due to environmental <br />Factors or personal actions .e.g. Hair dyeing, long nails, cosmetic surgery<br />10<br />
  11. 11. 2) Inherited Variation:<br />The differences that are determined by what we received from our parents at the time of conception.<br />Two types:<br />11<br />
  12. 12. 1) Continuous Variation<br /> When a difference shows range in population .e.g. Hair colour can be black, brown, light brown and blonde. <br />2) Discrete Variation:<br /> When a difference shows a simple or discrete occurance.e.g. Ear lobes are fused or not fused. Rolling or not rolling tongue.<br />12<br />

×