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andrey2020 [161]
3 years ago
10

The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on ________.

Biology
1 answer:
Evgen [1.6K]3 years ago
6 0

The correct option is c. the presence of appropriate receptors on target cells.

Hormones are secreted by the endocrine glands and act as chemical messengers enabling communication between the cells. The hormones have several diverse functions like to maintain homeostasis, regulation in different metabolic processes etc. The hormones are secreted into the extracellular environment from where they diffuse to the bloodstream and are transported by the circulatory system to the target cells. The target cells contain the receptors specific for a particular hormone and is activated either by a lipid soluble or by a water soluble hormone which binds to the cell surface receptors.

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Draw a DNA molecule that has five randomly spaced restriction sites for a spedific palindrome. How many fragments would be produ
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Answer:

Figures attatched

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1. Restriction enzymes cut the DNA in specific places of a specific sequence. Each restriction enzyme has different sequences of recognition.

2. Palindromic sequences are sequences that can be read the same in both senses (3' and 5'), for that reason restriction enzymes can cut both DNA strands

Now, for the first image: if a molecule has 5 restriction sites that are known for a single restriction enzyme, the enzyme will cut the DNA 5 times. If you see the image, the number of fragments is the number of restriction sites +1. In this case, it is 5+1=6 DNA fragments.

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