Admin Table of Contents
What controls a trait?
Traits are determined by genes, and also they are determined by the interaction with the environment with genes. And remember that genes are the messages in our DNA that define individual characteristics. So the trait is the manifestation of the product of a gene that is coded for by the DNA.
Which of the following traits in humans is controlled by polygenes?
In humans, height, skin color, hair color, and eye color are examples of polygenic traits. Type-2 diabetes, coronary heart disease, cancer, and arthritis are also deemed as a polygenic. However, these conditions are not just genetic since polygenes can be influenced by environmental factors.
How many factors control a trait?
ch 5 multigame
| A | B |
|---|---|
| Factors that control traits are called | genes. |
| Scientists call an organism that has two different alleles for a trait a | hybrid. |
| What does the notation AA mean to geneticists? | two dominant alleles |
| What does the notation Aa mean to geneticists? | one dominant allele and one recessive allele |
What are behaviors do we inherit via genes?
8 Traits We Have Inherited From Our Parents Sense Of Humor. Do you think that a sense of humor has been acquired? Dependence. If our parents smoke cigarettes, there is a high likelihood that we will have a tendency toward dependency. Money-saving. Can you save money? Phobias. Musicality. Need For Sleep. Extraversion And Introversion. Stress Sensitivity.
What traits are caused by a single gene?
Information. Dominant traits are controlled by 1 gene in the pair of chromosomes. Recessive traits need both genes in the gene pair to work together. Many personal characteristics, such as height, are determined by more than 1 gene. However, some diseases, such as sickle cell anemia, can be caused by a change in a single gene.
What are some hereditary traits?
These are called hereditary traits. These include dominant as well as recessive traits. Many human traits are transmitted in a simple Mendelian manner, while many others follow a non-Mendelian pattern shown when there is co-dominance, polygenes and sex-linked genes.
What are inherited characteristics?
In humans, eye color is an example of an inherited characteristic: an individual might inherit the brown-eye trait from one of the parents. Inherited traits are controlled by genes and the complete set of genes within an organism’s genome is called its genotype.