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dexar [7]
3 years ago
10

Bacteria such as e. Coli and salmonella produce invasins that bind host cells. True or False

Biology
1 answer:
gavmur [86]3 years ago
8 0
Answer:

True

https://www.easynotecards.com/print_list/94482
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An organism is homozygous dominant for one trait and heterozygous for another. What is the probability of the organism producing
adell [148]

Answer:

C.1 out of 2

Explanation:

The probability of the organism producing a gamete with one dominant allele and one recessive allele for these trait is 2 out of 4 which can be further reduced to 1 out of 2.

For a cross between Homozygous and heterozygous individual we will get 2 homozygous and 2 hetrerozygous individual. The heterozygous individual has one homozygous allele and one heterozygous allele

4 0
3 years ago
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What does it mean when light from a galaxy is redshifted? (Earth Science)
il63 [147K]
'Red shift' is a key concept for astronomers. The term can be understood literally - the wavelength of the light is stretched, so the light is seen as 'shifted' towards the red part of the spectrum.

Hope this helps.
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3 years ago
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A number of mutations have been described in the G protein Ras that have profound effects on its activity. For example, some mut
gladu [14]

Answer:

a mutation that blocks the GTPase activity of Ras

Explanation:

A G protein in inactive state is GDP bound but as soon as a guanine exchange factor (GEF) exchanges it with GTP it gets activated which means that in GTP bound state it is active. G - protein has endogenous GTPase activity. Upon interaction of GAP, the GTPase activity of this protein is exhibited. When GAP is present, hydrolysis of GTP into GDP occurs which leads to inactivation of G protein. A mutation which will block GTPase activity of Ras will therefore result in constitutive active signaling even in the absence of ligand binding to it's receptor. In such scenario, GTP will not be hydrolyzed into GDP so signaling will be up-regulated.

6 0
3 years ago
Name one strain of the bacteria that usually lives harmlessly in the digestive tracts of humans.
joja [24]

Eschecharia coli "E.Coli" is Bacterian strain which can survive within Digestive System of Human Body

It may also Cause Infection in your <Human> Gutt

7 0
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Your friend andre comes to school and tells you that he has a dislocated shoulder. based on what you now know about joints, what
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This means that the ball part of Andres joint has fallen out of the socket part of his shoulder joint.
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