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Alik [6]
3 years ago
9

What is the correct order of the following steps in the progression of lung cancer in a smoker? 1. Cilia are lost. 2. There is a

thickening and callusing of the cells lining the bronchi. 3. Metastasis occurs. 4. A tumor forms. 5. Cells with atypical nuclei appear.
Biology
1 answer:
Anuta_ua [19.1K]3 years ago
8 0

Answer:

The answer is given below in detail.

Explanation:

When a smoker continues smoking for years, the lungs develops cancer. The lung cancer progresses in the following order:

  1. The cell lining of the bronchi thickens and forms callus.
  2. After this step, cilia are lost
  3. Cells with atypical nuclei starts to appear
  4. After this tumor is formed
  5. In the final step, metastasis occur.

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In garden pea plants, purple flowers (P) are dominant to white flowers (p), and full pod shape (F) is dominant to constricted po
kifflom [539]

Answer:

The phenotypes are as follows

Purple, full- 9

Purple, constricted- 3

White, full- 3

White, constricted- 1

Genotype of parents are PpFf, each produce the following gametes: PF, Pf, pF and pf.

Explanation:

This is a dihybrid cross involving two distinct genes. One coding for flower color and the other for pod shape. The allele for purple color (P) is dominant over the allele for white color (p) while the allele for full pod (F) is dominant over the allele for constricted pod (f).

In a cross between two heterozygote parents i.e. PpFf × PpFf, each parent will produce the following gametes: PF, Pf, pF and pf. Using these gametes in a punnet square (see attached image) the following 16 offsprings will be produced in a phenotypic ratio: 9:3:3:1

Purple color, full pod- 9

Purple color, constricted pod- 3

White flower, full pod- 3

White flower, constricted pod- 1

7 0
3 years ago
Regarding maternal nourishment after delivery, which is correct? regarding maternal nourishment after delivery, which is correct
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Answer:

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Answer:

a dam flooding a valley

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