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cestrela7 [59]
3 years ago
10

When viewing a cork through his homemade microscope, Robert Hook discovered small compartments that he called _____.

Biology
2 answers:
LuckyWell [14K]3 years ago
6 0
He called the small spaces cells, reminding him of the small rooms in monasteries.
Nesterboy [21]3 years ago
4 0

Answer:

Option (2)

Explanation:

Robert Hook was the first person who identified the presence of a cellulose type of structure in plants. He observed some small pores when he was looking at a cork using his homemade microscope. These pores appeared to be in small compartments which are commonly known as cells. These cells were found only in plants. These are considered to be the microscopic structures that are not visible with our naked eye.

Thus, the correct answer is option (2).

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A Pea plant that is homozygous for inflated pods are heterozygous for round seeds is crossed with a plant that is heterozygous f
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The answer is False!

P - dominant allele for inflated pods
p - recessive allele for inflated pods
PP - homozygote with inflated pods
Pp - heterozygote with inflated pods
pp - homozygote with inflated pods

S - dominant allele for round seeds
s - recessive allele for wrinkled seeds
SS - homozygote with round seeds
Ss - heterozygote with round seeds
ss - homozygote with wrinkled seeds

1. <span>A Pea plant that is homozygous for inflated pods are heterozygous for round seeds: PPSs
2. A</span><span> plant that is heterozygous for inflated pods and a homozygous for wrinkled seeds: Ppss

Let's look at their genotypes separately, and cross them that way:

Parents:              PP       x      Pp
Offspring:     PP      PP      Pp     Pp
All of the offspring will have the same phenotype (100% = 1). So, this trait does not affect phenotypic ratio

</span>Parents:              Ss       x      ss
Offspring:     Ss      Ss      ss     ss
Half of the offspring will have wrinkled seeds and half of them will have round seeds: 50% : 50% = 1 : 1

So, the phenotypic ratio is not  1 : 3
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Answer:

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Evolution is the change in the structure of an organism with the passage of million of years. Evolution occurs due to two reasons, first from genetically while the other from adaptation to the environmental conditions. In genetically, the change in structure of animal comes from their parents whereas changes occurs due to adaptation of an organism in order to survive in the harsh climatic condition of the environment.

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