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Elenna [48]
3 years ago
10

Which of the following are tools used in frog dissection

Biology
1 answer:
galina1969 [7]3 years ago
8 0
To perform an actual<span> dissection, you will need a Dissection Kit: </span>Tray<span>, pins, </span>scissors<span>, scalpel, </span>forceps<span>, </span>goggles<span>, </span>gloves<span>, and probes. And, of </span>course<span>, a Preserved Frog.</span>
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Correctly order the steps involved cellular immunity:
REY [17]

Answer: B

Explanation:

The T helper cell needs to acttivate the T cyctotoxic cell in order for the Tc cell to go do its work.

Once the TC cell is active it interacts with MHC-1 proteins on the surface of the infected host cell, this allows the Tc cell to recignise the host cell and begin secreting cytotoxins (perforins and granzymes) in order to degrade the infected cell and cause apoptosis (controlled cell death)

5 0
3 years ago
A woman has her personal genome analyzed for the BRCA1 mutation after learning that her father is heterozygous and carries one m
puteri [66]

Answer:

a. 50%

Explanation:

<em>BRCA1 genes is a tumor supressor gene whose harmful mutation can cause hereditary breast ovarian cancer syndrome in both males and females. The BRCA actually stands for breast cancer.</em>

<em>Mutation in BRCA1 gene is heritable and every progeny of a carrier parent irrespective of the sex has a 50% chance of inheriting the trait from such parent, be it from the mother or the father.</em>

Hence, the correct option is a.

5 0
3 years ago
What is not a characteristic of life
maksim [4K]

Answer:

sicknesses

Explanation:

3 0
3 years ago
) is every minimum bottleneck tree of g a minimum spanning tree of g? prove or give a counter example
mote1985 [20]

The answer is false. To explain further, let G have vertices {v1, v2, v3, v4}, with ends between each pair of vertices, and with the mass on the edge from vi to vj equal to I + j. Then each tree has a bottle neck edge mass of as a minimum of 5, so the tree containing of a track through vertices v3, v2, v1,v4 is a least bottleneck tree. It is not a least spanning tree, though, subsequently its total mass is greater than that of the tree with edges from v1 to every single vertex.

5 0
3 years ago
What would be the expected result if a competitive, nonhydrolyzable analog of ATP were applied to the cytoplasmic side of a plas
Yakvenalex [24]

Answer:

The cell interior would experience higher than normal Na+ concentrations and lower than normal K+ concentrations.

Explanation:

The Na/⁺K⁺ pump is an ATPase pump which is responsible for maintaining low Na⁺ and high K⁺ concentrations within the cytoplasm while maintaining high Na⁺ and low K⁺ concentrations in the extracellular fluid.

Since these two ions are moved against their concentration gradient, ATP hydrolysis is required to provide the energy for this process. This is done by moving in two K⁺ ions  inside while moving three Na⁺ ions outside the cell for every molecule of ATP hydrolysed to ADP and Pi.

If a competitive non-hydrolyzable analog of ATP is applied on the cytoplasmic side of a plasma membrane that contained a large concentration of the Na/⁺K⁺ pump, it will act by inhibiting the action of the Na/⁺K⁺ pump. This will result in an accumulation of Na⁺ ions inside the cell and lower than normal K⁺ ions concentration.

6 0
3 years ago
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