Answer:
b. The two bacterial strains have different phenotypes.
Explanation:
In genetics, the trait that is expressed is often referred to as the dominant trait and it can also be expresssed phenotypically.
Since one of the bacteria produces the inducer, it therefore means that bacteria has the dominant strain for the regulatory inducer while the other bacteria might have the strain but since it is not expressed phenotypically, it is as a result not dominant.
Phenotype refers to the physical appearance of an organism as a result of the interaction of its genes with the environment. Examples of phenotypic expresssions are hair colour, skin colour, height, etc.
The half-life of a radioisotope is the amon the symbol 42He, the subscript 2 is the mass number for helium and the superscript 4 is the atomic number for helium.
Answer:
7/16
Explanation:
<em>The proportion of the offspring from the cross that will have white flowers is 7/16.</em>
The presence of anthocyanin which determines purple coloration is conditioned by the C_ and P_ alleles. It means that the absence of one or both of C and P will result in white flowers.
Two plants, each with CcPp are crossed:
CcPp x CcPp
Offpring
1 CCPP - purple
2 CCPp - purple
2 CcPP - purple
4 CcPp - purple
2 Ccpp - white
1 CCpp - white
1 ccPP - white
2 ccPp - white
1 ccpp - white
Proportion of offspring with white flowers = 7/16
Proportion of offspring with purple flower = 9/16
<em>See the attached image for the Punnet's square analysis of the cross.</em>
Answer:
True
Explanation:
The sympathetic autonomic nervous system activates the body for hormonal or neuronal responses also known as fight- or - flight response, For example during an fire emergency and there is a need to run. The response occurs primarily by via impulses transmitted through the sympathetic nervous system, and also secondarily through catecholamines secreted from the adrenal medulla.
Although the sympathetic autonomic nervous system is activated in stressful conditions, it needs to be constantly active even at a basal level to maintain homeostasis.
