Mendel crossed the dominant purple colour flowered plant with the recessive white colour flowered plant. The F 1 generation produced the heterozygous purple colour flowered (Pp) plants. When two heterozygous pea plants (Pp) are crossed in the F2 generation represented by Pp x Pp, the gametes formed are P and p. Out of the offspring produced, 3 are purple colour flowered plants and 1 is white colour flowered plant. Thus the phenotypic ratio is 3: 1 with one out of four plants being white colour flowered pea plant. When expressed in percentage it is 25%.
There are 20 amino acids and 64 codon combinations that make up an amino acid, therefore some amino acid combinations result in the same amino acid.
Answer:
Our major catfish species spawn during spring or summer when the water warms to an optimal temperature. Channel and blue catfish spawn at 70-84 degrees, but 80-81 degrees is considered best. Flatheads spawn at 66-75 degrees. Catfish spawning begins at different times in different latitudes, progressing from south to north.
Explanation:
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Answer:
An important regulation process that connects various parts of a system is feedback.
Explanation:
A reaction inside a biological system—a molecule, tissue, species, or population—that affects the behavior or performance of that system is known as feedback. It essentially involves the regulation of a metabolic pathway by the activity's byproducts.
Both positive and negative feedback is possible. Negative feedback is indeed a component of any feedback mechanism that keeps things in balance. Positive feedback in biology occurs far less frequently. Whenever a change in variable results in a reaction that undoes the original change, this is known as negative feedback. A reaction is generated by a change in a factor when there is positive feedback. For instance, a warm-blooded species like a whale keeps a greater body heat to improve the internal equilibrium and while a cold-blooded animal such as fish retains a lower temperature of the body in accordance with the surrounding environment.
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Answer:
Explanation:
Some microbes are thermophiles and they can survive in area with high temperature between 45 -80°C, they are chemoautotroph in nature, oxidizing sulphur to products acids such as sulfur in the environment. This acid also help them to better adapt to the environment as many thermophiles likes acidic environment.
Thermophiles body has saturated and straight chain fatty acid that helps prevent denaturation which enables them grow and thrive in harsh weather condition by providing the fluidity that is needed in membrane function.
Thermophiles are also small in sizes this ensure there stability.
