Found in retina, Starbust amacrine cells are characterized by simultaneous release of two neurotransmitters. These two neurotransmitters are GABA and acetylcholine. Bistratified states dual layer of cells. So, bistratified starburst amacrine cells occur in two types namely ON and OFF types.
ON types has stomata in Ganglion cell layer Inner Plexiform Layer while OFF types has stomata in Inner Nuclear Layer and Inner Plexiform Layer. Sox2 is a transcription factor associated with ability to modify the morphology and ratio of cells.
The mentioned paper aims to find if both ON and OFF types are neurally connected by bistratified starburst amacrine cells. The results suggested that Sox2 can alter binding of bipolar cells with dendrites.
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Answer:
a) Genotype of each parent plant= Tt
b) Genotypes of parent plants= Tt and tt
Explanation:
a) In the first cross, the tall and short progeny was obtained in almost a 3:1 ratio (78: 27). This means that both the parent plants were heterozygous for the gene of plant height. The genotype of each of the parents was Tt. A cross between Tt and Tt gives following progeny ratio=
Tt x Tt = 3 tall (1/2 TT and 1/4 Tt) : 1 short (1/4 tt)
b) In the second cross, tall and short progeny was obtained in almost a 1: 1 ratio (121: 118). This means that one parent plant was homozygous recessive (tt) and the other was heterozygous dominant (Tt).
Tt x tt = 1 tall: 1 short.
Answer:
When you begin getting old, matters inside your frame begins off revolved shutting down, like memory, resistance to sickness, etc. The bulk changed into born with all of this stuff running very well. We felt top and lifestyles changed into a pleasure. But while you attain 70' matters begin to end running and could retain to accomplish that until you die. Some human beings stay longer than others and their frame appears to keep collectively loads better. But we can all die one day.
Explanation:
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Answer:
The volume of the cell will remain same.
Explanation:
The cell is surrounded by a solution that has same concentration of solute particles as the cytosol inside.That means the cytosol of the cell is isotonic to the solution in which the cell is kept.
As a result the cell will neither swells nor shrinks and the volume of the cell remains constant.
The tigers have stripes because it is advantageous for them because they are an ambush predator and need good camouflage. The stripes are excellent camouflage for places that are shady, so the tiger can easily get close to its prey and attack it.
There's a very big possibility that the distant ancestors of the tigers did not had stripes. The reasons for that are different environment, but also that the stripes are actually a very rare type of pattern among the felidae family members.
As the environment started changing, the tigers needed to adapt to it, so they also needed a different camouflage. As some tigers in the population started to develop stripes, they were better hunters, thus were stronger, and seen as suitable mates for the females, as it would provide an offspring with the advantage that the male tiger has. Through this selection in the breeding process of mates that have advantageous camouflage patterns, the stripes were becoming more and more present, to the point where they totally pushed aside and eliminated the previously dominant camouflage pattern.