A mountain stream can be divided into several sections. In each of these sections the biological diversity varies greatly. What factors influence the diversity in this mountain stream?
What will be an ideal response?
The most important factors influencing the biological diversity are availability of nutrients and sunlight. To a lesser degree, temperature plays a role.
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Protruding from the inner membrane of the mitochondria into the matrix are knoblike spheres called ________ complexes, which are attached by a short protein stalk to a(n) ________ complex. Together these complexes are referred to as the ________ complex
Fill in the blank with correct word.
Dr. Edward Jenner realized that cows have a disease called cowpox, which is like a disease that infects humans called smallpox; Jenner noticed that milkmaids whose hands were infected with cowpox were not contracting smallpox. Jenner infected a child with the pus from a cowpox blister, and found that the child did not contract smallpox. Which statement represents a supporting hypothesis?
A. The cowpox infection will have no effect on the child's immunity to the smallpox virus. B. The smallpox virus was so similar to the cowpox virus that the child's immune system recognized it and was able to fight it. C. The cowpox infection will prevent the child from being infected by the smallpox virus. D. The cowpox virus prevented the smallpox virus from entering the child's immune system.
In Prokaryote genetics, Transduction can be defined as the:
A. Use of a bacteriophage (bacterial virus) to transfer DNA between cells. B. Naked DNA is taken up from the environment by bacterial cells. C. The correct answer is not listed. D. Direct transfer of DNA from one bacterial cell to another.
What is the structure of an hnRNP particle?
What will be an ideal response?