Answer:
50%
Explanation:
According to the given information, the woman has normal BRCA alleles while the man carries one copy of the mutated BRCA allele (BRCA1). A diploid organism such as human beings can have two BRCA alleles. A child gets one BRCA allele from the mother and the other from the father.
The child of the couple would get one normal allele from the woman. However, with respect to the BRCA allele, the man would form two types of gametes in equal proportion. The 50% of his gametes would have the mutated BRCA1 allele while the rest 50% would carry the normal BRCA allele. Therefore, the man can transmit either normal or mutated BRCA allele to the child. So, there are 50% chances for the child to get the mutated allele.
Answer:
Option D, Five radish plants are grown in sunlight, while another five radish plants are kept in the dark.
Explanation:
In a controlled experiment, impact of one independent variable is studied on the dependent variable.
Here in this study sunlight is the independent variable while the radish plant is dependent variable.
The researcher wants to study the effect of sunlight on radish plants when they are exposed to it and compare it to the effect created on radish plants that are kept in dark.
Hence option D is correct.
Answer: Fovea Centralis
Explanation:
Fovea Centralis is located at the center of the retina. It is responsible for interpreting visual detail with accuracy, by sending visual information to the ganglion cells, which eventually transmits them to the brain.
Thus, Fovea Centralis is the answer
Answer:
The nervous system transmits signals between the brain and the rest of the body, including internal organs. In this way, the nervous system's activity controls the ability to move, breathe, see, think, and more. The basic unit of the nervous system is a nerve cell, or neuron.
Explanation:
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I believe the answer is E. increasing the blood pressure. ADH hormone also called vasopressin is a hormone made by the hypothalamus in the brain and stored in the posterior pituitary gland. It regulates the amount of water in the blood, and constantly regulates and balances the amount of water in the blood. Higher concentrations of water increases the blood volume and pressure.