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bixtya [17]
3 years ago
7

1

Biology
2 answers:
Zanzabum3 years ago
8 0

Answer: to make the experiment easier to repeat

Explanation:

topjm [15]3 years ago
3 0
Because this is necessary for the data to be valid. If you are testing one variable but the conditions of the control and experimental are different besides that variable, you will have more than one variable and will not be able to tell if the results of the experiment are caused by the variable you were trying to test.

(Sorry for repeating the word variable so much, lol)
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The enzyme that catalyzes the fixation of carbon dioxide in photosynthesis is _____. See Section 10.4 (Page 224) . View Availabl
olasank [31]
<h2>Answer is "RuBisco"</h2>

Explanation:

  • It contains high measures of fundamental amino acids, which makes it somewhat interesting among vegetable proteins. Because of its properties, RuBisCo is a generally excellent possibility for food applications. It can not exclusively be utilized as a protein source yet in addition as an emulsifier, frothing and gelling operator
  • RuBisCO, and it is a type of protein, called an enzyme, that is involved in the Calvin cycle.An enzyme is a type of protein that makes reactions occur faster. For example, there is an enzyme in our body that helps transfer carbon dioxide from our cells to our blood. This reaction occurs 107 times faster with the enzyme
  • Hence, the right answer for fill up the blanks is "RuBisco"

4 0
3 years ago
Gene expression in eukaryotes can be regulated at many different levels. List the different levels of regulation, and explain wh
Aneli [31]

Answer:

Transcription, mRNA (processing, transport, localization and stability), translation.

Explanation:

  • Transcription is regulated in two levels, though chromatin regulation (methylation and acetylation) to loose or increase histone's affinity to DNA and through cis and trans elements such as promoters, enhancers, and silencers (cis) to active/deactivate and RNA polymerase and transcription factors and co-factors (trans).
  • mRNA can be regulated using poly-A tails or 5'-caps to shorten or give them more time before they degrade, it could also be spliced to eliminate introns.
  • In the translation stage, the regulation occurs during the initiation through a scanning procedure that ensures the 40s ribosomal subunit bind correctly to the untranslated portion of RNA

Hope this information is useful to you!

4 0
3 years ago
In sweet pea, red flower color is controlled by two genes involved in the anthocyanin pathway, A and B. Both genes are required
Alex787 [66]

Answer:

The dihybrid ratio we expect in the offspring is 9:7.

Explanation:

This is an example of complementary gene interaction, which is the non allelic interaction or genes, where the prominent genes at heterozygous loci may complement each other by complementing recessive alleles at the respective loci.

So in this case of  complementary gene interaction, the individuals that are A-bb or aaB- or aabb will have the same set of observable features (phenotype) but only A-B- individuals will how the dominant phenotype.

4 0
3 years ago
Define photosynthesis ​
mr_godi [17]

Answer: Photosynthesis is process of green plants and organisms use sun or UV light to <u>synthesize </u>from CO2 (carbon dioxide) and water to make food. Usually producing green pigment called chlorophyll (what makes leaves green) and oxygen as a byproduct which they do not need.

5 0
3 years ago
Read 2 more answers
In pea plants, purple flowers are dominant to white flowers. Suppose two heterozygous purple-flowered plants (Tt) are crossed. W
iris [78.8K]

Answer:

75%

Explanation:

This question involves a single gene coding for flower color in pea plants. The allele for purple flowers (T) is dominant over the allele for white flowers (t).

According to the question, two heterozygous purple-flowered plants (Tt) are crossed i.e. Tt × Tt. The following gametes will be produced by each parent; T and t. Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

TT, Tt, Tt, and tt.  

Since purple allele (T) is dominant, offsprings TT, Tt, and Tt will be phenotypically purple-flowered. Hence, ¾ × 100 = 75% of offsprings will have purple flowers.

4 0
3 years ago
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