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Black_prince [1.1K]
2 years ago
15

A man drinks swamp water and later contracts malaria. This fact alone does not provide conclusive evidence that swamp water is r

esponsible for causing malaria. To draw a valid conclusion, a _________ experiment with only one __________ factor is needed.
(first blank choices: controlled, scientific or dual)
(second blank choices: constant, variable or common)
Biology
1 answer:
Nataly_w [17]2 years ago
5 0

Answer:

1. controlled

2.variable

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Which is not something that occurs in translation? A codon and an anticodon pair. A peptide bond is created. A molecule of mRNA
Veseljchak [2.6K]

Answer:

A molecule of mRNA is formed.

Explanation:

Translation is the second process that occurs in gene expression. It is the process by which the information encoded in the mRNA transcript is used to synthesize a protein.

The mRNA nucleotide sequence is read in a group of three nucleotides called CODON. Each codon specifies an amino acid. Translation, which occurs in the ribosomes (cytoplasm), reads the codon with an anticodon using the complementary base pairing rule i.e. A-U, G-C. This means that a CODON-ANTICODON pairs.

The anticodon carries a corresponding amino acid to the polypeptide sequence. A peptide bond is formed when two amino acids joins together in a condensation reaction.

Note: A molecule of mRNA is formed during transcription

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According to the law of conservation of matter, matter is never created or destroyed. It only changes form as is evident in the
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Lost phosphorus is actually recycled through the processes of mineralization, reabsorption, dissolving, and precipitation.

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Which is an example of a transverse wave?
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a crowd doing a wave at a sporting event

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Assume that the length of wheat leaves is controlled by three loci, each with two alleles: L and l, W and w, H and h. Determine
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2 years ago
If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the haematocrit is _______
nordsb [41]

Answer:

If 32 packed volume units of cells are separated from 46 volume units of plasma from a blood sample, the hematocrit is <u>41,02%</u> percent. The hematocrit value is <u>within the normal</u> range.

Explanation:

Hello!

Hematocrit (or packed cell volume -PCV-)is defined as the percentage of red blood cells (vol%) in a blood sample. One common method of determining it is by centrifuging a heparinized blood sample in a capillary tube at 10 000 RPM for five minutes. This separates the blood sample in two layers, formed elements (RBC and WBC) and Plasma.

The length of the layers is directly measured from the tube and represents the volume of packed cells and plasma. Since the number of white cells is negligible compared to the number of red cells, the formed elements are considered to represent the red blood cells.

The hematocrit can be calculated as the volume of packed cells divided by the total volume of the blood sample.

\frac{PCV}{TOTAL(pcv+plasma} * 100

<u>In the question:</u>

\frac{32}{32+46} * 100 = \frac{32}{78} * 100 = 41,02%

In humans the normal hematocrit range is 40,7% to 50,3% for men and 36,1% to 44,3%. Taking these reference values into consideration, this sample is within the normal range.

I hope you have a SUPER day!

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