The answer is true. <span>A covalent bond is formed when atoms share electrons. </span>
Answer:
a. It is present at high concentration at the anterior end and low concentration at the posterior end.
Explanation:
One of the ways to define the anterior-posterior axis in Drosophila is by the products of the Bicoid and Nanos genes. The mRNA from the bicoid gene is transcribed by nurse cells. The bicoid mRNA is deposited in the unfertilized egg near its anterior pole. Therefore, the bicoid gene product serves as the anterior morphogen. The bicoid mRNA is translated after fertilization. The Bicoid proteins are present in higher concentrations at the anterior end and diffuse through the cell to create a concentration gradient from the anterior to the posterior end.
Answer:
measels is caused by a single stranded Rna virus of the family Paramyxoviridae
Answer:
Cone dystrophy is manifested by the loss of acute visual acuity (which cannot be corrected with glasses), severe sensitivity to light (photophobia) and blind spots (scotomas) in the peripheral vision, which progress and produce poor vision in dimly lit or dark environments ("night blindness") and total loss of the peripheral visual field, which can be progressive.
Explanation:
Rod and cone dystrophies (CRDs) are inherited retinal dystrophies. They are included in the group of retinitis pigmentosa, and, more generally, in that of retinopathy pigmentosa. Cones are responsible for color and detail vision. Cone dystrophy is a disease of hereditary degeneration of the cone receptors, whose hallmark includes the "trilogy" of progressive loss of central visual acuity, disturbance in color vision and sensitivity to light (photophobia) which can be progressive.
Enzymes are biological catalyst, they are located in several places in the digestive system . hope this helped .