1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GREYUIT [131]
3 years ago
12

A man who smokes heavily has developed lung cancer. The tobacco smoke has caused mutations in some of the cells in his lungs, ma

king them unable to stop reproducing and dividing. He is worried that his children, none of whom smoke, may have inherited the lung cancer from him. Under what circumstances might his concern for his children be justified? A. If his smoking had already mutated the DNA in the cells in his lungs at the time his children were conceived, the mutations would have been passed to his children. B. If he inherited a mutation which made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children. C. If the mutation resulted from the duplication of a gene in his lung cells, his children would be at greater risk than if it were caused by a base pair substitution. D. If the smoke had caused multiple different mutations in his lung cells, it would be more likely that one or more of the mutations would be passed to his children.
Biology
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

The correct answer is: B. If he inherited a mutation which made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children.

Explanation:

  • The inheritance of genes from the parents to the offspring is mediated by the germinal cells or sex cells or gametes of the parents.
  • The genetic material present in the somatic cells of the parents are not transmitted to the offspring.
  • In the given case, the man who develops lung cancer generates some tobacco smoke induced mutations in some of the cells of his lungs.
  • The cells of the lungs are type up of somatic cells. Hence, any mutations in the genome of these cells will never be transmitted to the offspring.
  • Therefore, the children of the man will never become prone to develop lung cancer due to development of mutations in the lung cells of the man.
  • However, if the man has inherited any mutation from his parents which can increase the risk of development of lung cancer, then these mutations will be present in his germinal cells and also in some of his gametes.
  • Now, if a child is born due to the fusion of the the maternal gamete with one of these mutated paternal gametes, there is an increased chance of developing lung cancer in the child, irrespective of the fact whether he is a smoker or a non-smoker.

You might be interested in
Some protozoa have cell structures that are formed as temporary extensions of the cell membrane, allowing the cell to detect and
xxMikexx [17]

Answer:

Pseudopodia. (Ans A)

Explanation:

Pseudopodia are defined as the projections of the cytoplasm of the eukaryotic cell membrane, and unicellular protists. They are synthesized by the microtubules, and filament structures. They are divided into different shapes, and types such as: Lobopodia, Filopodia, Reticulopodia, and Axopodia.

Axopodia pseudopods are supported by microtubules array, they are covered by the cytoplasm, and mostly used for catch and ingestion of food. Genus Heliozoa, and Radiolaria of protists are example of Axopodia pseudopods.

7 0
3 years ago
What are the end products of the HYDROLYSIS of a polysaccharide?
cricket20 [7]

Answer:

The most important polysaccharide to man. Upon complete hydrolysis will yield glucose molecules. found as a stored polysaccharide in the liver of man and other animals. This is how our bodies store sugars for later use.

Explanation:

Brainliest please?

8 0
2 years ago
Read 2 more answers
Which best describes the purpose of connective tissue?
garik1379 [7]
<span>The correct answer is that its primary function is to connect, support and anchor various parts of the body. It can either connect bones, or it can connect muscles. It also ensures that they don't move in an unexpected manner and that your bones don't randomly fall out of sockets. It's very useful and you couldn't move without it.</span>
4 0
2 years ago
Nervous tissue contains specialized cells called
Olin [163]
Their called Neurons
7 0
3 years ago
What are the effects of tidal forces
bija089 [108]
High water floods &- volcanic eruptions
4 0
3 years ago
Other questions:
  • What type of seashore has the most diversity
    15·1 answer
  • The organ that produces the egg cell in the life cycle of the pine is called the____? A.Ovules B.Antheridia C.Archegonium
    7·2 answers
  • Cell division which stage of the cell usually last the longest
    13·1 answer
  • What system moves O2 and CO2 around?
    7·1 answer
  • 3. Is a bone a living structure, or merely a deposit of mineral compounds?
    6·1 answer
  • Uppose that you are studying an inducible operon that contains two genes required for the metabolism of compound xyz. gene a enc
    8·1 answer
  • Describe how a change in dna sequence could result in a changed sequence of amino acids in a protein.
    5·1 answer
  • Which parts of Earth are most similar to the plate with an axis angle of 80°?
    13·1 answer
  • How many mass in soft drinks crown in 1 pieces​
    12·2 answers
  • blockade of the human ether-a-go-go-related gene (hERG) encoded rapidly activating delayed rectifier potassium (IKr) of cardiac
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!