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KonstantinChe [14]
3 years ago
8

Before mitosis can proceed what sequence of steps that must first occur

Biology
1 answer:
ira [324]3 years ago
3 0
1-The cell size increases RNA and synthesize protiens and prepare for DNA synthasis
2-DNA replication
3-Cell grows and produces proteins for cell division, determines if cell can undergo mitosis.

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A hidden population has been discovered in Turkey. Researchers have calculated that 22% of the population have Uner Tan Syndrome
Rainbow [258]

Answer:

Thus, 50% of the population are are heterozygous carriers for this condition

Explanation:

Researchers have calculated that 22% of the population have Uner Tan Syndrome. This condition follows the recessive mode of inheritance.

22% have the condition = q² (genotypic frequency uu) = 22/100 = 0.22

using the formular p + q = 1, since q² = 0.22, q = √0.22 = 0.4690

Thus p = 1-q where  is 0.4690 = 1-0.4690

  p = 0.5310

Then p² = 0.5310² = 0.2820 = 28% (genotypic frequency of homozygous normal)

using the formula p² + 2pq + q² where 2pq is the genotypic frequency of the heterozygous carriers. Thus, we have

2 x 0.5310 x 0.4690 = 0.498 = 50%

Thus, 50% of the population are are heterozygous carriers for this condition

6 0
3 years ago
The template strand of part of a gene has the base sequence TGAGAAGACCAGGGTTGT. What is the sequence of RNA transcribed from thi
Klio2033 [76]

Answer:

The answer to your question is ACUCTTCUGGUCCCAACA

Explanation:

Base sequence

                         TGAGAAGACCAGGGTTGT

Nitrogenous bases change from DNA to RNA

                   DNA                      RNA

                      Adenine                 Uracil

                      Thymine                  Adenine

                      Guanine                 Cytosine

                      Cytosine                 Guanine

Then from left to right, the new sequence the RNA is

                       

                           ACUCTTCUGGUCCCAACA

                         

3 0
4 years ago
What are the characteristics of the phylum chordata
erik [133]

Answer:

Characteristics of Chordata. Animals in the phylum Chordata share four key features that appear at some stage during their development: a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post- tail (Figure 2). In some groups, some of these are present only during embryonic development.

8 0
3 years ago
Which type of fossil is formed by sediments and found in sedimentary rock?
tresset_1 [31]
Answer: Carbon film of a leaf
7 0
3 years ago
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Which process is major source of oxygen released into the atmosphere?
Vanyuwa [196]
<span>The correct answer is Photosynthesis. It is a process found in plants that enables them to turn light into chemical energy. Luckily for us, the the waste product for plants in this is Oxygen which is released into the atmosphere. The more plants there are the more oxygen there is. That's just one more reason why cutting down the rainforests is extremely dangerous for the future of humanity on Earth.</span>
6 0
3 years ago
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