Lecture 11 - Multiple Alleles
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/16
There's no tags or description
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai | Chat |
|---|
No analytics yet
Send a link to your students to track their progress
17 Terms
Are humans diploid or haploid organisms?
Diploid (2n)
Homologous chromosomes
Paired chromosomes that have the same genes (alleles) for the same trait (phenotype) located at the same place (locus) on a chromosome
Are homologous chromosomes always identical?
No, homologous chromosomes are not always identical. While they may have the same genes, they can have different alleles.
Allele
A form of a gene which codes for one possible outcome of a phenotype
You perform a cross between two heterozygous green peas (Gg). Below are the results:
Genotypic Ratio: 1GG: 2Gg: 1gg
Phenotypic Ratio: 3 Green Peas: 1 Yellow Pea
Based on these results, what is the mode of inheritance?
Complete (Simple) Dominance
You perform a cross between two heterozygous green peas (Gg). Below are the results:
Genotypic Ratio: 1GG: 2Gg: 1gg
Phenotypic Ratio: 1 Green Pea: 2: Lime Green Peas: 1 Yellow Pea
Based on these results, what is the mode of inheritance?
Incomplete Dominance
You perform a cross between two heterozygous green peas (Gg). Below are the results:
Genotypic Ratio: 1GG: 2Gg: 1gg
Phenotypic Ratio: 1 Green Pea: 2: Green and Yellow Peas: 1 Yellow Pea
Based on these results, what is the mode of inheritance?
Codominance
Which of the following accurately describes the surface antigens and plasma antibodies present in a person with Type A blood?
Type A antigens and anti-B antibodies
How do the IAIB alleles interact in an individual with Type AB blood?
Both alleles are fully and simultaneously expressed, demonstrating codominance
The ABO blood type is controlled by how many alleles?
Three alleles
If you’re having trouble determining the mode of inheritance of a cross, what should you do?
Look at the heterozygote
What is the relationship of Type A and B blood to Type O?
Complete (Simple) Dominance
What is the relationship of Type A blood to Type B blood?
Codominance
RH Factor
Specific antigens (D-antigen) on the surface of RBC’s
What is the mode of inheritance for RH Factor?
Complete (Simple) Dominance
MN Cell Surface Antigen
Specific antigens (L-antigen) on the surface of RBC’s
What is the mode of inheritance for MN Cell Surface Antigen?
Codominance