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oksano4ka [1.4K]
2 years ago
12

Which the following statements are TRUE or FALSE regarding the organelles within a cell?

Biology
1 answer:
IRINA_888 [86]2 years ago
7 0

<em>2nd is true...3rd is false...5th is true...sorry can't guide u more than this</em><em>.</em>

<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em>

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Edward Jenner’s smallpox inoculation experiment was based on an observation by a dairymaid that she could not get smallpox becau
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Edward Jenner inferred that a person who once had small pox cannot have it once again. So something is there in these persons which grows after the initial infection which interferes with the secondary infection resisting it.

<h3><u>Explanation:</u></h3>

Edward Jenner is called the Father of Vaccination. Jenner noticed that the milkmaids who deal with the cows all the time don't generally suffer from the cowpox or small pox. Then as an Experiment, he took some sample from the pustules of the cow having pox and then cleaned it and injected the sample into a healthy child. Then when everyone of the locality suffered from the same disease, that child remained healthy. So that lead to infer that there are something in the pustule which lead to resist the secondary infection of this disease. So this lead to the invention of vaccines.

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3 years ago
About 16% of the world's total oil output:
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Answer:

D) Comes from oil rigs in the Atlantic Ocean!

Explanation:

3 0
3 years ago
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Does atomic mass equal number of protons plus the number of neutrons?
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<span>The number of protons plus the number of neutrons is called the mass number.</span>
3 0
3 years ago
Design an experiment to determine whether the pink flower of petunia plants results from incomplete dominance.
anzhelika [568]

Answer:

To cross petunia plants/lines with pink flowers (F1) which were obtained by crossing plants with red and white flowers (parental generation). The presence of petunia plants with red or white flowers in F2 would evidence that this trait is under incomplete dominance.

Explanation:

Incomplete dominance is a type of relationship in which both alleles are expressed in heterozygous individuals, thereby resulting in a new phenotype. This type of allelic interaction is commonly referred to as 'the dilution of the dominant allele' in heterozygous individuals. Moreover, codominance refers to a type of allele relationship in which both alleles are expressed to an equal degree in heterozygous individuals.

5 0
3 years ago
Which of the following are true of epigenetic changes?
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Answer:

all of the above

Explanation:

Epigenetic alterations are modifications of the genome transmitted during cell division, which do not involve changes in the DNA sequence, are hereditary and are capable of modifying gene expression. In addition, they are temporary modifications that allow DNA to be transcribed and have the ability to move histones to open or close a chromosomal region. There are three main mechanisms of epigenetic alterations: DNA methylation, histone modifications and genomic imprinting.

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3 years ago
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