A signal cascade is a series of chemical reactions which are triggered by a stimulus acting on a receptor that is then transduced to the intracellular space through second messengers. Finally, effector molecules receive the signal causing a cellular reaction to the initial stimulus. A signal cascade is very useful because it facilitates and accelerates the communication between cells that could be in different parts of a living organism. This communication is vital for cell processes in complex multicellular organisms.
Answer:
The correct answer is option A. the potato gene pool.
Answer:
1/8.
Explanation:
Karyotype may be defined as the visual appearance and the number of chromosome of the organism. Karyotype helps in studying the chromosomal abnormalites.
The human male has extra piece at chromosome 4. The abnormal pattern on the chromosome 7. The probability to inherit the defective chromosome 4 is 1/2, defective chromosome 7 is 1/2 and the probability of Y chromosome is 1/2. The probability of child to inherit all these chromosome is (1/2) × (1/2) × (1/2) = 1/8.
Thus, the answer is 1/8.
Answer:
Answer: causing degradation of transcription factors and changing which genes are expressed
Explanation:
Answer:
organ
Explanation:
because I said it is and if its a problem you can fixxxx it