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valkas [14]
3 years ago
9

Which organelle is not found in plant cells?

Biology
2 answers:
Lynna [10]3 years ago
7 0
The plant does not contain the following organelles. centrioles, lysosomes, cilia, and flagela.  
kotykmax [81]3 years ago
3 0

Answer:

centrosome and lysosomes

Explanation:

The centrosome (two centrioles) are only present in animal cell and is absent in plant cell. These are microtubules which are used in the formation of spindle fibres at the time of cell division. The spindle fibres seperates the chromatids. The plant cell still forms spindle fibres in the absence of centrioles.

The lysosome is absent in plant cell whereas plant vacuoles functions similarly to lysosomes. The lysosomes play important role in removing debris material from the cell. Cilia and desmosomes are also absent in plant cells.

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What is 0.005 equal to?
notka56 [123]

Not rounded:  

0.005% of 100 = 0.005  

Rounded to maximum 2 decimals:  

0.005% of 100 ≈ 0.01

0.004% of 100 = ? ... 0.006% of 100 = ?  

1% of 100 = ?

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3 years ago
In a population of 200, 86 individuals express the recessive phenotype. What percent of the population would you predict would b
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Answer:

The correct option is;

D. 45%

Explanation:

From the Hardy- Weinberg law, we have;

p² + 2·p·q + q² = 1

p + q = 1

Where:

p = Dom inant allele frequency in the population

q = Recessive allele frequency in the population

p² = The percentage of individuals in the population that are hom ozygous dominant

q² = The percentage of individuals in the population that are homo zygous recessive

2×p×q = The percentage of hete rozyous individuals in the population

The number of individuals that express the recessive phenotype = 86

The number of individuals in the population = 200

The percentage of  individuals that express the recessive phenotype, q² = 86/200 = 0.43

Therefore;

q = √0.43 = 0.656

p + q = 1

p = 1 - q = 1 - 0.656= 0.344

∴ The frequency of  individuals that express the do minant phe notype, p = 0.344

The percentage of heterozyous individuals in the population = 2×p×q × 100 = 2 × 0.656 × 0.344 × 100 = 45.15% ≈ 45%

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