Answer: c. coordinate.
Explanation:
Coordinate genes are those genes which are responsible for the development of major coordinate axes in the embryo. These axis include the anterior posterior axis and dorsal and ventral axis. These genes are responsible for the development of front, rear, top and bottom portions of the embryo. A null mutation restricts the transcription and translation processes in a gene thus when the RNA is not produced then no functional protein is expected. If the null mutations occur in the coordinate genes than it will effect the embryonic development. This will interfere in the formation of anterior and posterior poles of the embryo.
Im sorry this is late but i just got this answer and i got d projective tests
Answer:
<em>A</em><em>.</em>
<em>The correct answer would be A. ratio of surface area to volume .The cells are mostly spherical in shape.The surface area of the sphere = 4πr²The volume of the sphere = (4πr³)/3Thus, the increase in size would increase the volume (r³) more as compared to the increase in surface area (r²).The ratio of surface area to volume would decrease due to which the diffusion rate would not be efficient enough to distribute the essential elements throughout the volume of the cell.</em>
Explanation:
<em>R</em><em>a</em><em>t</em><em>i</em><em>o</em><em> </em><em>o</em><em>f</em><em> </em><em>t</em><em>h</em><em>e</em><em> </em><em>s</em><em>u</em><em>r</em><em>f</em><em>a</em><em>c</em><em>e</em><em> </em><em>a</em><em>r</em><em>e</em><em>a</em><em> </em><em>t</em><em>o</em><em> </em>volume.
An insect bite on the face produces a break in the skin which introduces the normal skin flora (usually <em>Staphylococcus </em>and <em>Streptococcus</em>) to the sterile subcutaneous tissue causing inflammation. The inflammation of the subcutaneous tissue is called cellulitis. Since the infection is in the face, then it can travel from the infected site to the meninges through the cavernous sinuses and cause bacterial meningitis.