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LuckyWell [14K]
3 years ago
10

Ls that tea is an impure substance? ​

Biology
2 answers:
Rufina [12.5K]3 years ago
8 0

Answer:yes

Explanation:

Impure substance is a mixture of 2 or more molecules

rusak2 [61]3 years ago
6 0
Tea is not a pure substance as it is a mixture of milk and the tea solution, the tea solution contains water , the leaf particles and sugar particles .the tea is still not a pure substance
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A team of scientists splices a human gene into bacterial plasmids. The human gene codes for insulin. Then the scientists use the
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Answer: D. The genes for antibiotic resistance help the transformed bacteria survive in their environment.

Explanation:

First and foremost, we should note that plasmids used in the delivery of DNA typically consists of genes which helps in antibiotic resistance.

Based on the question given, we should note that the genes for antibiotic resistance help the transformed bacteria survive in their environment. This is because cells that have been treated with plasmid are able to survive and grow compared to those that have not been treated with plasmid which are eventually killed by the antibiotic.

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Select the autotrophs<br> spider<br> Cow<br> mushroom<br> sunflower<br> Algea
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The diagram shows the chemical structure of a nucleotide.
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3 years ago
There are 3 possible genotypes: NN, MN, or MM. In a group of 500 people, the frequency of genotype NN is 40%. How many individua
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235 are the Individual numbers that would expect to have the MN type of genotype.

There are two equations necessary according to Hardy-Weinberg Equilibrium:-

<em>p</em> + q = 1

p² + 2pq + q² = 1

Let,

NN= p

NM=2pq

MM=q

So, according to the question, the frequency of genotype NN is 40%

40% of 500 = \frac{500*40}{100} = 200 Numbers of individuals

Frequency of individuals <em>p </em>= \frac{Numbers of individuals}{Total populations} = \frac{200}{400} = 0.4

Find <em>p</em>² by taking the square root of <em>p</em>.

√(<em>p</em>) = √(0.4)

= 0.632

So, <em>pp + qq = 1  </em>

<em>qq</em> = 1 - <em>pp </em>=  1 - 0.63

q = 0.37

The allele frequencies in the population are known, now finding the frequency of heterozygous genotype.

By Multiplying<em> 2 × p ×q  </em>to get heterozygous genotype

<em>2pq =  2 × 0.63 × 0.37` = 0.47</em>

<em>2pq = 0.47</em>

<em>So, 2pq × total population = 0.47 × 500 = 235, NM genotype.</em>

Learn more about Hardy-Weinberg Equilibrium here,

brainly.com/question/16823644

#SPJ4

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2 years ago
How are animals divided into groups based on the morphological trait of the number of tissue layers during development?
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Explanation:

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