Answer:
All of the statements are true.
The X chromosome is one of the two sex chromosomes of humans and some animals (the other sex chromosome is the Y chromosome). Men have a single X chromosome and women two X chromosomes.
Diseases whose gene is localized on the X chromosome are most often transmitted in the X-linked recessive mode; some are transmitted on the dominant mode related to the X.
In this mode of inheritance, the morbid allele behaves like a recessive trait.
Women heterozygotes are not affected but can transmit the disease; they are aid to be conductive of the disease.
The disese is only manifested in male subjects (XY) with only one copy of the gene (hemizygous subjects)
Answer:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome.
Answer:
vulcanized rubber
Explanation:
The best material for this purpose is vulcanized rubber. Jogging strollers have wider bases and larger wheels to stabilize them, and these wheels must be durable in order to withstand the stresses introduced during the high speed movement.
Answer:
B. Replaces injured tissues with connective tissue
Explanation:
Inflammatory responses are natural defense mechanism of body of higher organisms which have been evolved to protect the organism from various types of infections and injuries. The main function of his response is to -
- Localize the injury so that it will not spread to the other parts of the body
- Eliminate the injurious agents to prevent further increase in the infection inside the body
- Remove the damaged tissue of the body so that it can start the mechanism of tissue healing
Thus, all the functions of the inflammatory responses that are mentioned in the options are correct except option B.
