<span>I think 2.1 billion years ago
Hope this helped :)
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Answer:
FIFRA
Explanation:
The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) is a United States federal law that set up the basic U.S. system of pesticide regulation to protect applicators, consumers, and the environment.
The Homeland Security Presidential Directive 12 (HSPD-12) is the directive that was issued for "Policy for a Common Identification Standard for Federal Employees and Contractors".
The Committee on the Elimination of Racial Discrimination (CERD) is the body of independent experts that monitors implementation of the Convention on the Elimination of All Forms of Racial Discrimination by its State parties.
The Perishable Agricultural Commodities Act (PACA) was enacted at the request of the fruit and vegetable industry to promote fair trade in the industry. PACA ...
Options have not been provided for the question. They are as follows:
What is the correct order for these genes using a linkage map analysis?
A. Z-X-Y-W
B. X-W-Z-Y
C. W-X-Y-Z
D. Y-W-Z-X
E. Z-X-W-Y
F. Y-X-W-Z
Between which two genes is crossing over most likely to occur?
A. B and D
B.X and Z
C. X and W
D. X and Y
E. W and Z
F. Y and W
G.Y and Z
Answer:
Correct order for these genes using a linkage map analysis: E. Z-X-W-Y
Two genes between which the crossover is most likely to occur: G.Y and Z
Explanation:
According to linkage concept, recombination frequency between two genes = distance between two genes in cM
Here, smallest distance is between X and W ( 7cM ) so they are present next to each other. Distance between X and Y is 17cM and between W and Y is 10cM so W is present between X and Y. Distance between X and Z is 13 cM. Since on one side of X, W and Y are already present Z lies on the other side. So, the final gene order comes out to be, Z-X-W-Y.
According to the gene order, Y and Z genes are farthest from each other. Chances of crossover or recombination increases with increasing distance between genes. So, Y and Z have the highest probability to show crossing over.
Answer: Gastroenterology
Explanation: Gastroenterology is a branch of medicine concerned with digestive diseases. The practice of gastroenterology concentrates on the diagnosis and treatment of diseases involving the esophagus, stomach, small intestine, and large intestine (colon), liver, and pancreas. Examples of conditions treated: Abdominal pain.
The sequence of steps that starts with the sensory receptors in the eye changing light information from the world into electrical signals sent by neurons is an example of Visual phototransduction.
<h3>How does eye perceives light?</h3>
- Eyes are the organs of sight. They provide organism with vision.
- Light enters the eye through cornea. When light hits the retina (a light-sensitive layer), special cells called photoreceptors turn the light into electrical signals. These electrical signals travel from the retina through the optic nerve to the brain. Then the brain turns the signals into the images you see.
- Three basic steps by which sensory systems work are Sensation, Transduction and Perception.
- Sensation is the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment
- Transduction is conversion of one form of energy into another. The transforming of stimulus, such as sights, sounds, and smells, into neural impulses our brain can interpret.
- Perception is the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events.
Learn more about eye here:
brainly.com/question/12885721
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