A lack of blood flow determines the number of cell layers that can
survive when they are transplanted
autosomal recessive disorder=d
homozygous dominant=D
dd
dD
B
The statement "<span>A strand of DNA serves as a model of the synthesis of RNA molecules" is totally a false statement. Each and every DNA strand only serves as a template or a model for the formation of other DNA molecule which was called as the process of replication.</span>
Gene drives is a powerful genetic engineering technology that may help to eradicate diseases transmitted by mosquitoes but it may also be harmful and cause the extinction of natural populations.
<h3>What are Gene drives?</h3>
Gene drives refer to a genetic engineering strategy based on genome editing (e.g., CRISPR-Cas9) that allows to produce a bias in the inheritance patterns of natural populations.
Gene drives modify normal inheritance to increase the selection coefficient of genetically engineered individuals, which may result in an advantage to control a vector population.
In conclusion, gene drives is a powerful genetic engineering technology that may help to eradicate diseases transmitted by mosquitoes but it may also be harmful and cause the extinction of natural populations.
Learn more about genetic engineering benefits here:
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Answer: The relationship between blood pressure and heart rate responses to coughing was investigated in 10 healthy subjects in three body positions and compared with the circulatory responses to commonly used autonomic function tests: forced breathing, standing up and the Valsalva manoeuvre. 2. We observed a concomitant intra-cough increase in supine heart rate and blood pressure and a sustained post-cough elevation of heart rate in the absence of arterial hypotension. These findings indicate that the sustained increase in heart rate in response to coughing is not caused by arterial hypotension and that these heart rate changes are not under arterial baroreflex control. 3. The maximal change in heart rate in response to coughing (28 +/- 8 beats/min) was comparable with the response to forced breathing (29 +/- 9 beats/min, P greater than 0.4), with a reasonable correlation (r = 0.67, P less than 0.05), and smaller than the change in response to standing up (41 +/- 9 beats/min, P less than 0.01) and to the Valsalva manoeuvre (39 +/- 13 beats/min, P less than 0.01). 4. Quantifying the initial heart rate response to coughing offers no advantage in measuring cardiac acceleratory capacity; standing up and the Valsalva manoeuvre are superior to coughing in evaluating arterial baroreflex cardiovascular function.
Explanation:
