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gogolik [260]
3 years ago
13

4.Enzymes catalyze chemical reactions by _____.

Biology
1 answer:
KatRina [158]3 years ago
6 0

I know this is late but the correct answer is

D. Lowering the activation energy of the reaction

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Name two monomers present in one molecule of the disaccharide sucrose​
Nutka1998 [239]
The two monomers present in one molecule of disaccharide sucrose is composed of the monomers glucose and fructose.

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3 years ago
A bird species that migrated from riverbanks in South America to the northern hemisphere were responsible for pollinating a plan
aniked [119]

Answer:

Gene flow would decrease as a result of the alteration of migration patterns. Therefore, the variability of this species would decrease.

Explanation:

Gene flow refers to the<u> transfer or introduction of genes from one population to another</u>. Gene flow enables the introduction of new alleles, therefore increasing biodiversity.

The rate of gene flow between groups of species depends on different factors. For instance, gene flow increases with the ability of a species to move from one place to another and, at the same time, on the possibility of migrating species mating with resident species. This occurs not only with birds but even with humans, when they migrate from one country to another, which increases diversity and variability.

Therefore, <u>if the migration patterns of birds that pollinate a plant species from South America is altered, then there would be less variability within this plant and also with this bird species.</u>

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3 years ago
As of the year 2000, the human population was approximately _______.
Phantasy [73]

6 billion the answer

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What is a function of the backbone in animals?
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It surrounds the spinal cord is anwser

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Most nonsense mutations in genes that encode structural proteins cause a null ("knockout") phenotype.
cestrela7 [59]
  1. TGA (opal)

Answer:

Explained below

Explanation:

A mutation in a gene that results in total loss of the normal function of the gene product encoded by that gene, resulting in a Null phenotype.

Changes in DNA sequence are termed as nonsense mutation that introduce a stop codon, resulting in a non functional protein. This terminology results stop codons have also worked as nonsense codons.

There are three different stop codon-

In RNA

  1. UAG (amber)
  2. UAA (ochre)
  3. UGA (opal)

In DNA

  1. TAG (amber)
  2. TAA (ochre)
  3. TGA (opal)
4 0
3 years ago
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