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3 years ago

Which organisms have the potential to reproduce?

Biology

2 answers:

Blababa [14]3 years ago

6 0

Only unicellular orgaimns I might be wrong

Lyrx [107]3 years ago

4 0

It’s D All living organisms can reproduce unicellular and multicellular organisms included

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An unknown bacterium produces colorless colonies when inoculated onto an EMB plate. Predict what you would see if you inoculated

marshall27 [118]

The EMB (Eosin Methylene Blue) agar is a selective and differential agar medium. It contains sucrose and lactose as fermentable substrates together with Eosin Y and methylene blue dyes which in combination gives the agar its characteristic color when prepared and serves as a pH indicator as well as an inhibitor of growth of Gram-positive bacteria. Hence, it is primarily used to isolate Gram-negative fecal coliforms while some positive fecal coliforms such as Staphylococci are also able to grow.

These coliforms are of two types:

Lactose or sucrose fermenting coliforms form metallic sheens on the agar as a result of acid production and the response of the indicator to the increased acidity.
Non-lactose/sucrose fermenters are only able to produce acid by protein deamination. Hence they either form colorless or pinkish colonies on the agar

On the other hand, Mannitol salt agar is a selective and differential agar medium that is primarily used to isolate Staphylococcal bacteria. The presence of sodium chloride in the medium makes it a partial or complete inhibitor of other bacteria.

Hence, an unknown bacterium that forms colorless colonies on EMB will either be a non-lactose fermenting, Gram-negative coliform that will hardly grow on Mannitol salt agar, or a Gram-positive fecal Staphylococcus.

Staphylococci bacteria are of two types:

Coagulase-positive will form yellow colonies on the Mannitol salt agar.
Coagulase-negative will form red colonies on the Mannitol salt agar.

More about isolating media can be found here: https://brainly.in/question/7238948

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2 years ago

In the periodic table of elements, what do all of the elements in row 2 have in common?

Bess [88]

Answer is A. I kid chemistry a while back but I am pretty certain it is A.

7 0

3 years ago

If a living cell were compared to a factory which part of the factory would be equivalent to the nucleus?

Svet_ta [14]

3) a
due to how the nucleus makes up cell chromosomes as to multiplying and etc

8 0

2 years ago

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Human blood type is determined by three alleles IA, IB, and IO. The alleles IA and IB are co-dominant to each other, and both ar

dlinn [17]

Explanation:

According to p²+q²+2pq=1 (Hardy-Weinberg equilibrium)

heterozygote allele will be always 2pq

<u>1. Population</u>

1. A blood group has two genotypes- IAIA and IAIO

The genotype frequency will be-

IAIA= 0.3 X 0.3 = 0.9

IAIO= (0.3 x 0.6) x 2= 0.36

Total genotype frequency = 0.9+ 0.36 =0.45 or 45%

Now 45% of 540,000= 2,43000 (A blood group)

2. B blood group has two genotypes- IAIB and IBIO

The genotype frequency will be-

IBIB= 0.1 x 0.1 = 0.1

IBIO= (0.1 x 0.6)-=0.12

Total genotype frequncy= 0.13 or 13%

popluation with B blood group= 13% of 540,000 will be 70,200

3. AB blood group is IAIB

2 x IAIB= (0.3 x 0.1) x 2= 0.6

popluation with B blood group= 6% of 540,000= 32,400

4. O blood group

2. Heterozygote

IBIO blood group

= (0.1 x 0.6) x 2

= 0.12 or 12%

= 12%

4 0

3 years ago

How to remember animal tissue with mnemonics to remember ?

vekshin1

Answer:

kkkhknnoiioiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Explanation:

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2 years ago

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