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Mamont248 [21]
3 years ago
5

(Number 15)Which phase of mitosis during growth and development demonstrates the communication and exchange of genetic informati

on by aligning chromosomes in the middle of the cell?

Biology
1 answer:
Ghella [55]3 years ago
5 0

The correct answer is: 2.metaphase.

Mitosis is a process of cell division and it is separatd into phases.

• Interphase-DNA replication (two identical full sets of chromosomes),

• Prophase-chromosomes composed of two sister chromatids with identical genetic information,

• Metaphase- chromosomes line up along the centre of the cell,

• Anaphase- chromatids are pulled apart by the mitotic spindle (one chromatid to one pole and the other chromatid to the opposite pole),

• Telophase- a full set of chromosomes at each pole of the cell.


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For each sequence of DNA is shown. Write the complementary RNA sequence underneath the letters, then use the codon chart to dete
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In garden peas, tallness (T) is dominant to shortness (t) and axial flowers (A) are dominant to terminal flowers (a). What are t
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Answer:

The correct answer is explained below:

Explanation:

  • According to the question, heterozygous tall, heterozygous axillary plant has the following genotype, TtAa.
  • It produces the following gametes: TA, Ta, tA, ta.
  • The heterozygous tall, terminal plant has the following genotype: Ttaa
  • It produces the following gametes: Ta, ta.
  • Crossing them,

           TA                       Ta                     tA                        ta

Ta      TTAa                   TTaa                 TtAa                   Ttaa

     (Tall, Axillary)    (Tall, Terminal)    (Tall, Axillary)    (Tall, Terminal)

ta       TtAa                    Ttaa                  ttAa                   ttaa

     (Tall, Axillary)     (Tall, Terminal)   (Short, Axillary)  (Short, Terminal)

  • The genotypes of the offspring obtained are: TTAa, TTaa, TtAa, Ttaa, ttAa and ttaa respectively.
  • The phenotypes obtained are:
  1. Tall, Axillary = 3.
  2. Tall, Terminal = 3.
  3. Short, Axillary = 1.
  4. Short, Terminal = 1.
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Organisms going into hibernation and dying off and leaving their eggs behind is an example of what
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