AP BIOLOGY

HEREDITY

MONOHYBRID CROSS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The physical expression of a genetic trait is called a
A
mutation
B
genotype
C
crossing over
D
phenotype
Explanation: 

Detailed explanation-1: -Phenotype or phenotypic characters are observable physical characteristics of an organism. For example, height, blood type, eye color, etc. The physical expression of a gene is called the phenotype.

Detailed explanation-2: -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.

Detailed explanation-3: -Phenotype refers to an individual’s observable traits, such as height, eye color and blood type. A person’s phenotype is determined by both their genomic makeup (genotype) and environmental factors.

Detailed explanation-4: -The physical expression of a gene is called phenotype. It represents the way we see an organism from outside. Genotype is the genetic make up of a cell. It is the genotype that determines the phenotype. The term ‘genotype’ was coined by the Danish botanist and geneticist Wilhelm Johannsen in 1903.

Detailed explanation-5: -A phenotypic trait, the expression of genes in an observable way, is an obvious and measurable trait. The phenotype is variable depending on the genetic makeup of the organism and also influenced by the surroundings to which the organism is subjected across its morphogenesis, including various epigenetic processes.

There is 1 question to complete.