Answer:
This term was created by Charles Darwin based off his research on evolution
Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the heritable traits characteristic of a population over generations.
In computer science, a mutator method is a method used to control changes to a variable. They are also widely known as setter methods. Often a setter is accompanied by a getter (also known as an accessor), which returns the value of the private member variable
Answer:
The independent variable is "controlled" or held constant in the control group.
Explanation:
Answer/Explanation:
For the woman to be blood type B, she must either have 2 B alleles (homozygous, BB) or 1 B allele (heterozygous, BO). We can draw two punnett squares to show each of the potential outcomes when she has children with an AB man.
The two punnett squares are attached. In order to have a child that is type A, she needs to be heterozygous, BO. Even then, there was only a 25% chance that their child would have type A blood. If she were homozygous BB, it would be impossible for her to have a type A child with an AB man.
Answer:
E. On in the presence of lactose and absence of glucose
Explanation:
Expression of lac operon synthesizes the enzymes required for catabolism of lactose sugar. When both glucose and lactose are available, glucose is preferred as a nutrient and the lac operon is not expressed.
Lac operon is expressed only when glucose is absent in the medium and lactose is present. If any of the two conditions deviate, the operon is not expressed.
In the absence of glucose and the presence of lactose, the repressor is rendered inactive to bind to the operator. RNA polymerase enzyme is free to bind to the promoter and continue the process of transcription.
The reduced levels of glucose increase the cAMP levels which in turn bind to the Catabolite activator protein (CAP). CAP is a positive regulator that binds to the promoter to facilitate the transcription of the operon by RNA polymerase.
