1. The ratio of the genotype variance to total phenotypic variance is called heritability. 2. The narrow-sense heritability measures how similar offspring are to their parents. 3. The variance is a measure of the spread of the distribution and is estimated in terms of squared deviation. 4. Identify four factors that can contribute to phenotype variation.
Added by David M.
Step 1
Step 1: The ratio of the genotype variance to the total phenotypic variance is called heritability. Show more…
Show all steps
Your feedback will help us improve your experience
Danielle Ashley and 91 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Epistasis influences genetic ratios, segregation of alleles, kinds of gametes formed, and phenotypic ratios. 2. Alternative forms of genes are called genotypes, alleles, traits, and phenotypes. 3. The expression of one allele to the exclusion of the other allele of a heterozygous gene pair is called dominance. 4. How many genetically different eggs can be produced by a woman with the following genotype: AaBBCCDd? 5. The range of different skin colors among humans is caused by a polygenic trait, which means that the trait is controlled by two or more multiple alleles.
Madhur L.
When mapping QTLs, hybridization experiments are carried out, investigations of environmental influence are done, monohybrid crosses are used, traditional linkage mapping testcrosses are used, and associations with molecular markers are identified.
Adi S.
Assuming alleles have a clear dominance relationship, a dihybrid cross leads to a phenotypic ratio in offspring that is close to _____ a. 1: 2: 1 b. 3: 1 c. 1: 1: 1: 1 d. 9: 3: 3: 1
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD