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zhenek [66]
2 years ago
7

The lock-and-key mechanism refers to

Biology
1 answer:
dolphi86 [110]2 years ago
6 0

Answer:

I think the answer is A.  the complementary shapes of an enzyme and a substrate.

Explanation:

I hope this helps! Correct me if I am wrong.

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You have a cup of beans in front of you with 20 white beans and 20 red beans. These beans represent the alleles for a simple Men
Marta_Voda [28]

Answer:

Dominant: 20, Recessive: 20

Explanation:

The case shown in the question above explores simple Mendelian traits, since it shows a population where individuals of the same species present the dominant allele (R- red) and the recessive allele (r- white). We can project, then, that this population has an allele balance, where it is possible to find 20 red beans, which have the dominant allele and 20 white beans, which present the recessive allele.

4 0
4 years ago
3. Name the six kingdoms of life, and give two charac-<br>teristics of each.​
IRISSAK [1]

Answer:

Animalia - multicellular, eukaryotic

Plantae - vacuolate eukaryotic cells, multicellular

Protista - unicellular and multicellular, eukaryotic

Fungi - decomposers, non-motile

Eubacteria - unicellular, prokaryotic

Archaebacteria - no peptidoglycan, glycoproteins and polysaccharides in cell walls.

Hope that helps. :)

3 0
3 years ago
AH PLEASE HELP ME, 80 POINTS
Dennis_Churaev [7]

1.Water evaporates in the presence of sunlight.

(hydrosphere)


2.Volcanoes release a large amount of gases and other matter during eruption.  

(lithosphere)


3.Lightning causes nitrogen molecules to be split and carried by rain.

(hydrosphere)


4.Plants release water vapor through their leaves during transpiration.

(biosphere)


Hope this helps!

5 0
3 years ago
Read 2 more answers
Vinblastine is a standard chemotherapeutic drug used to treat cancer. Because it interferes with the assembly of microtubules, i
Gnesinka [82]

Answer:

a. disruption of mitotic spindle formation.

Explanation:

Vinblastine is a chemotherapeutic drug which is used to restrict cancer cell proliferation. During metaphase, it binds to microtubular proteins which play a very important role in mitotic spindle formation. If spindles will not form then during anaphase, the sister chromatids will not separate and mitosis will not take place. This is how hyper-proliferative cancerous cells are controlled from dividing and cancer is treated using this drug.

8 0
4 years ago
Limestone is a sedimentary rock. True False
ValentinkaMS [17]
Yes Limestone is a sedimentary rock. :)
8 0
3 years ago
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