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natima [27]
3 years ago
7

Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase

into an early phase and a late phase. Which of these has occurred by the end of prophase?
Biology
1 answer:
saveliy_v [14]3 years ago
8 0

Answer:

Explanation:

At the ending of pro phase or late prophase, the mitotic spindle begins to capture and organize the chromosomes.

* The chromosomes have finished condensing and are now very compact.

* The nuclear envelope is broken down and the chromosomes are released.

* The mitotic spindle grows more, and some of the microtubules start to “capture” chromosomes.

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In garden peas the allele for tall plants () is dominant over the allele for dwarf plants() A true breeding tall plant is bred w
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Answer: This is called Monohybrid Experiment

Explanation: Monohybrid Cross

P Generation TT     *   tt

  Tall plants     Dwarf plants

F1 Generation  

T T

t Tt Tt

t Tt Tt

In F1 generation;

There are 100% Tt Genotype and 100% Tall plant Phenotype

F2 Generation

F1   *   F1

( Tt   *   Tt )

T t

T TT Tt

t Tt tt

In F2 Generation;

Genotype

There are 25% TT (homozygous dominant, tall plants).

50% Tt (heterozygous tall plants), and

25% tt (homozygous recessive dwarf plants).

This is how dwarf characteristics reappear in the second generation.

The Phenotype of F2 generation is 3:1  (Tall : Dwarf)

I have attached a document to this answer to facilitate effective understanding if there is anormalities in arrangement the Punnet Square.

Download docx
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