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KengaRu [80]
3 years ago
12

Which carboyhydrate can be used by the body as an immediate source of energy?

Biology
1 answer:
Kipish [7]3 years ago
5 0

Answer:

Glucose

Explanation:

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The outward manifestation of a disease, often influenced by both genes and the environment, is called the disease:
xeze [42]

Answer: C. phenotype.

Explanation:

The disease phenotype is an observable characteristic or trait of a disease. It is influenced by the genetic make up and the surrounding environment of the organism. The appearance of symptoms, biochemical and physiological development of the disease is associated with the traits inherited from parents and also under the influence of the environment.

4 0
3 years ago
How are freshwater and seawater alike?
lesantik [10]

Answer:

H20

Explanation:

They are both water and carry oxygen for animals

5 0
3 years ago
A DNA fragment is introduced into the lacZ gene of a plasmid, which also contains an ampicillin resistance gene. What is the app
zhenek [66]

Answer: The bacteria transformed with this particular plasmid will form white colonies on the plates containing ampicillin and Xgal.

Explanation: The lacZ gene produces an enzyme called β-galactosidase which is responsible for the breakdown of lactose into glucose and galactose. The lacZ gene is one of the three genes (the other two being lacA and lacY) of the lac operon which is responsible for the transport and mechanism of lactose in E. coli and many other bacteria.

In recombinant DNA technology, when a plasmid is to be used to transform a host cell, such markers are used to help screen the transformed cells from the ones that have not taken up the plasmid. Xgal present in the plates is an artificial substrate which is hydrolyzed by

β-galactosidase into 5-bromo-4-chloro-indoxyl which will dimerize and oxidise into 5,5'-dibromo-4,4'dichloro-indigo. This is a blue pigment which will give blue color to the bacterial cells. Introducing a DNA fragment in this lacZ gene will make it non-functional so it will not be able to produce the enzyme.

Therefore, when a bacterial cell is transformed with a plasmid containing ampicillin resistance gene and a DNA fragment introduced in the lacZ gene and then grown on plates containing ampicillin and Xgal, white colored colonies will appear. The white colonies will show the bacterial cells that have successfully taken up the plasmid with the DNA fragment incorporated in the lacZ gene as this will render the gene non-functional and will not produce β-galactosidase which will breakdown Xgal to give blue colonies. Since the plates contain ampicillin, only the bacterial cells that have been successfully transformed with the plasmid ( the ones that have the DNA fragment and the ones without it) will grow as the ampicillin resistance will give them resistance against ampicillin in the plates. The bacterial cells that have not taken up the plasmid will not be resistant to ampicillin and will not form colonies on the plate.

This is called blue-white screening which is used to identify successfully transformed host cells. A picture of this is given in the attachment, taken from the following website:

https://www.mun.ca/biology/scarr/Blue_&_White_Colonies.html

8 0
3 years ago
_____ exhibit two radial body forms, the polyp and the medusa, and use stinging cells to capture prey.
Kryger [21]

The complete statement is this: CNIDARIA exhibit two radial body forms, the polyp and the medusa, and use stinging cells to capture prey.

Cnidaria is categorized under the Animalia kingdom. It is made up of more that eleven thousand species, which all live in aquatic habitats; either fresh or salt water environments. There are four basic classes of cnidarians, these are: Anthozoa, Cubozoa, Scyphozoan and Hydrozoa. Their common feature is the cnidocytes, which are specialized cells that they use to capture their preys.  

Cnidaria have two radial body types, which are called polyp and medusa. They used cnidocytes (stinging cells) to capture the foods they feed on.

3 0
3 years ago
6. (50 points) EXPLAIN all of the tree trimming steps in order as if you were discussing a job with a
stiks02 [169]

Step one: Travel approximately 18 inches up the underside of the branch you are removing. Cut up about halfway through the branch.

Step two: Move to the top side of the branch. Choose a location an inch further out from your first cut. Carefully cut down until the branch breaks free.

Step three: Find the branch collar on your trunk. This is stem tissue around the base of the branch. . Make a complete cut with a 45-degree angle kicking out from the base of the tree.

(SOURCE Chris Lambton) Add your vocabulary words in along the way if you decide to use my answer.

5 0
3 years ago
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