Hypothalamus Gland
Gonadotropin-releasing hormone (GnRH)
Stimulates Pituitary gland to release gonadotropin
Pituitary Gland
Growth hormone Regulates body growth
Thyroid Gland
Thyroxine
Regulates body metabolism
Pancreas Gland
Insulin and Glucagon
Regulates blood sugar level
Adrenal Gland
Epinephrine
Regulates heart rate and blood pressure
Testes
Testosterone
Development of sperms and male characteristics
Ovaries
Estrogen and Progesterone
Development of eggs and female characteristics
Answer:
A
Explanation:
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The cAMP receptor protein (CRP) is said to be responsible for positive regulation of the lac operon because (D) CRP bound to the CRP-binding site stimulates the transcription of the lac operon.
CRP is a regulatory protein. It binds to the cAMP and causes a conformational change. This allows the CRP to bind to a specific site at the promoter region of the DNA. This then activates the transcription process.
Lac operon is a group of genes that allow the uptake of glucose in bacteria. There are four components of lac operon: regulator gene, promoter gene, operator gene and structural genes. The machinery of operon is turned on the lactose itself.
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A mutation is any alteration in the genetic material (nucleotide sequence) of an organism. Mutations can be neutral, harmful, or beneficial depending on the environment in which the orgasm lives.
- In this case, the mutation IS HARMFUL because the organism is not more able to break down starch.
- The deleterious mutations are eliminated (selected) by natural selection.
- Beneficial germline mutations can eventually be inherited, increasing their frequency in the population.
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Answer:
Process called magnetic separation
Explanation:
The magnetic separation is a process in which magnetically susceptible material is extracted from a mixture using magnetic force.
This method is also used to separate the mixture of sand and iron fillings as iron is attracted by magnet.
