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labwork [276]
1 year ago
6

Identify the letter that indicates a flexible tube that has c-shaped cartilaginous rings that keep it from collapsing.

Biology
1 answer:
Ronch [10]1 year ago
5 0

'E' letter for Trachea indicates a flexible tube that has c-shaped cartilaginous rings that keep it from collapsing.

  • There are many cartilage rings in a typical trachea (windpipe) (a strong and flexible tissue). These C-shaped rings give your child's trachea support while enabling it to bend and move naturally during breathing.
  • These rings are O-shaped rather than C-shaped due to a congenital anomaly known as full tracheal rings. Your youngster may get aberrant windpipe thinning and airway stenosis as a result. The trachea has between 16 and 20 rings.
  • This cartilage defect may have an influence on any number of those rings. While some kids with full tracheal rings may at first only show minor breathing issues, other kids might be in serious respiratory distress.

Learn more about the Trachea with the help of the given link:

brainly.com/question/2560510

#SPJ4

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2 years ago
If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition?
kaheart [24]

Answer:

only females

Explanation:

In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.

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The answer is.......4!!

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