Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
The Work of Gregor Mendel
Transcript of The Work of Gregor Mendel
What are dominant and recessive alleles?
What is Genetics?
-the scientific study of heredity
How did Mendel study inheritance in peas?
-he studied inheritance in peas by cross-pollinating pea plants which resulted in seeds that had two different plants as parents
-he then planted the seeds and observed which characteristics the new plants would have
What was Mendel's conclusion about inheritance?
-he discovered that biological inheritance is determined by factors that are passed from one generation to the next
-he discovered "the principle of dominance" which states that some alleles are dominant and others are recessive
a dominant allele for a particular form of a trait will always exhibit that form of the trait
a recessive allele for a particular form of a trait will exhibit that form only when the dominant allele for that trait is not present
What happens during segregation?
-during segregation, the separation of alleles occurs during the formation of gametes or sex cells
What is fertilization?
-when male and female reproductive cells join during sexual reproduction
What is true-breeding?
-referring to Mendel's pea plants, if they were allowed to self pollinate, they would produce offspring identical to themselves
What is a trait?
-a specific characteristic, such as seed color or plant height, that varies from one individual to the next
What is a hybrid?
-the offspring of crosses between parents of a different species
What are genes and alleles?
-genes (which are found in our DNA) are chemical factors that determine traits
-alleles are the different forms of a gene, for example an allele that produces tall plants and another that produces short plants