Table of Contents
How can genes determine the phenotype of an organism?
The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. An organism’s phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
How does DNA help to determine an organism’s traits?
DNA contains the information to make proteins, which carry out all the functions and characteristics of living organisms. DNA carries all of the information for your physical characteristics, which are essentially determined by proteins. So, DNA contains the instructions for making a protein.
Does information in DNA completely determines the phenotypes of organisms?
The production of proteins is controlled by the DNA which sends out mRNA to instruct the ribosomes RNA to make the proteins. So ultimately it is the DNA that controls the phenotype indirectly through the RNA and protein production. But proteins are directly responsible for the phenotype.
How does DNA relate to genotype and phenotype?
A genotype is an individual’s collection of genes. The genotype is expressed when the information encoded in the genes’ DNA is used to make protein and RNA molecules. The expression of the genotype contributes to the individual’s observable traits, called the phenotype.
What is an organism’s phenotype?
A phenotype is an individual’s observable traits, such as height, eye color, and blood type. The genetic contribution to the phenotype is called the genotype. Some traits are largely determined by the genotype, while other traits are largely determined by environmental factors.
Which part of the DNA molecule determines an organism’s traits?
Gene
Gene. A segment of a DNA molecule (a sequence of bases) that codes for a particular protein and determines the traits (phenotype) of the individual. A gene is the basic unit of heredity in a living organism.
What determines or contributes to your phenotype quizlet?
your genotype is what makes your phenotype. your base sequence of a gene is what determines your allele- dominant or recessive, your two alleles determine ypur genotype, your genotype determines your phenotype. an organism’s genotype determines theor phenotype, because the genotype has the genes.
How do genotype determine phenotype?
Genotype & Phenotype. Definitions: phenotype is the constellation of observable traits; genotype is the genetic endowment of the individual. Phenotype = genotype + development (in a given environment). In a narrow “genetic” sense, the genotype defines the phenotype.