Which description is an example of a phenotype?
A phenotype results from gene expression and the physical factors of their environment. For example, tree height in many Mangrove species is controlled by environmental stressors such as temperature and drought; thus, tree height in mangroves is a phenotype.
How do proteins determine the traits of an organism?
The traits of a living thing depend on the complex mixture of interacting components inside it. Proteins do much of the chemical work inside cells, so they largely determine what those traits are. But those proteins owe their existence to the DNA (deoxyribonucleic acid), so that is where we must look for the answer.
How are the traits of an organism encoded?
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.
How does DNA determine the characteristics of an organism quizlet?
How does DNA determine our traits? DNA carries the instructions for making all proteins, which determine our traits. DNA can’t leave the nucleus so mRNA copies the message of DNA and carries it to a ribosome. … This protein will determine a trait.
Which describes a genotype homozygous dominant for a single trait?
An organism with two dominant alleles for a trait is said to have a homozygous dominant genotype. Using the eye color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is said to have a heterozygous genotype. In our example, this genotype is written Bb.
Which describes an organism’s allele combination?
Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.
An Introduction to Mendelian Genetics | Biomolecules | MCAT | Khan Academy
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