Answer:
a) The genotype of her father = "aa".
The genotype of her mother = "Aa".
The genotype of Sally is "Aa".
b) 1/2
c) 1/2
Explanation:
a) Sally's father has alkaptonuria. So, the genotype of her father is "aa". Her mother is normal. Since her brother is affected by the disease, he should be homozygous recessive (aa). This means that the mother also has one copy of "a" allele and is heterozygous dominant (Aa). A cross between Aa (mother) and aa (father) would give 50% affected progeny with "Aa" genotype. So, the genotype of Sally is "Aa".
b) The genotype of her mother= Aa
The genotype of her father = aa
Aa x aa = 1/2 Aa (affected): 1/2 aa (normal)
So, if Sally's parents have another child, there is a 1/2 probability that this child will have alkaptonuria.
c) The genotype of Sally = Aa
Genotype of the man Sally marries= aa (since he is affected with alkaptonuria)
Aa x aa= 1/2 Aa (affected): 1/2 aa (normal)
There is a 1/2 probability that their child will have alkaptonuria.
Answer: Sympathetic nervous system.
Explanation:
In the adrenergic synapse, the neurotransmitter is norepinephrine. Adrenergic synapses release the neurotransmitter in the Sympathetic nervous system. This system controls reactions related to Increase brain activity and alertness, Dilation of the pupils, Crystalline accommodation for distance vision, Increased Respiratory and Cardiac Frequency, Vasodilation in the muscles of the legs, Reduction of salivary secretion, gastric and intestinal.
<h3>Adverse effects of covering the land with concrete and asphalt is Natural resources are depleted.</h3>
- Asphalt is a petroleum-based product. Concrete requires rock, sand and a fabricated cement component to strengthen the material hold the pavement material.
- Fortunately, industry innovation has led to meaningful progress toward resource conservation.
- Road construction companies have developed ways to reuse existing concrete and asphalt by remixing it materials.
Learn more about Asphalt and concrete effect on environment here:
brainly.com/question/14718527
