Answer:
Because the probability of hemophilia would be 1:4
Explanation:
Hemophilia is a disease that comes with a sex chromosome (pair 46).
It is a recessive allele associated with chromosome X, women have two X chromosomes they can carry it, but they don't have it because they have another dominand allele non-hemophilic.
If you draw a Punnet square with a non-hemophilic father and a carrying mother, you'll found you have 1:4 chances of having a baby boy with hemophilia.
Carrying mother = X(H)X(h)
Father = X(H) Y
A carrier woman has a 50% chance to pass the hemophiliagene to her son. Hemophilia, a sex-linked disorder, impairs blood clotting leading to excessive bleeding. Therefore, surgeries like circumcision that cause significant bleeding should be avoided.
A woman carrying the hemophilia gene can indeed pass it on to her son. Hemophilia is a sex-linked genetic disorder predominantly occurring in males. The reason being, the defective gene causing this condition is located on the X chromosome, and males have one X chromosome received from their mother and one Y chromosome from their father. If the X chromosome obtained from the mother carries the hemophilia gene, the male child will develop the disease. This is because males lack a second X chromosome that can compensate for the one carrying the defective gene.
If a woman who carries the hemophilia gene has a son, there is a 50% probability that the son will have hemophilia. That's why it's essential for such a woman to take precautionary measures. Circumcision is a surgical procedure which involves significant bleeding. In cases of hemophilia, blood clotting is impaired, leading to a high risk of excessive and prolonged bleeding. Therefore, it would be a wise decision to avoid circumcision where there is a risk of the boy having hemophilia.
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Answer:
The correct answer is B. interferes with other cell replication.
Explanation:
This is because the cancer cells attack other cells, prohibiting them to reproduce. In addition, the immune system attacks itself, so this could also lead to the malfunction of cells.
Hope this helps!
Each sheep has their own genetic information. So if they were unrelated, each sheep would give unique genes, resulting in unique offspring.
Annual lambing, in which ewes born in the fall give birth to lambs in the spring, is the most popular method of breeding sheep. However, ewes are bred in late spring to lamb in fall, or in early fall or late summer to lamb in winter.
This produces lambs for more lucrative markets (eg, September for the Christmas lamb market).
In order to do this, programs that extend the ovulatory season into the late summer or stimulate estrus during the anovulatory season in the spring must be used of controlled intravaginal drug-releasing devices.
Producers who have flocks that lamb out of season, however, hardly ever follow an annual breeding plan since, generally speaking
Therefore, Each sheep has their own genetic information. So if they were unrelated, each sheep would give unique genes, resulting in unique offspring.
To learn more about sheep, refer to the link:
brainly.com/question/70529
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b. saturated lipid
c. nitrogenous base
d. deoxyribose sugar
B) vitamin b
C) vitamin c
D) vitamin d
2. Appositional growth ends in
A) infancy
B) adolescence
C) early adulthood
D) late adulthood
3. What is the name of process of the addition of new layers of bone
A) ossification
B) appositional growth
C) diaphysis
D) epiphysis
4. which of the following sections of the spinal column have five vertebrae
A) the cervical section
B) the thoracic section
C) the coccal section
D) the lumbar section
5. what provides the bone with flexibility and tensile strength
A) calcium
B) collagen fibers
C) vitamin D
D) adipose tissue
6. The process of moving body part around a central axis is
A) flexion
B) adduction
C) supination
D)rotation
7. The bone of the extremities are part of the
A) appendicular skeleton
B) axial skeleton
C) long bone group
D) medial skeleton
8. what type of bone is a skull bone
A) lone bone
B) short bone
C) flat bone
D) irregular bone
9. The shoulder is a type of ____ joint
A) plane
B) ball-and-socket
C) pivot
D) saddle
10. The skull and spinal column are part of the
A) Appendicular skeleton
B) axial skeleton
C) flat bone group
D) peripheral skeleton
1. The right answer is D.
Vitamin D is an organic substance necessary for the metabolism of the body. A large part of our needs (80%) is synthesized from a derivative of cholesterol under the action of UVB radiation from the sun, it is also for this reason that it is also called "sun vitamin" . The rest must be drawn from the diet.
It intervenes in the absorption of calcium and phosphorus by the intestines, then in the reabsorption by the kidneys. Indispensable for growth during infancy, it ensures the robustness of the human skeleton and prevents osteoporosis. After a certain age, the body does not synthesize vitamin D as easily.
2. The right answer is C
Growth can continue until the age of 25 in a man and 18 in women, and contrary to popular belief, it is not uncommon to grow to over 21 years and it is impossible to predict a growth stop or define the future size of any individual.
3. The right answer is A
Ossification always begins in the median region of the diaphysis, under the perichondrium, by a small ring of bone generated by osteoblasts arising on the inner side of the perichondrium; these cells secrete around them layers of ossein impregnated with calcareous salts; from this moment the perichondrium must be called the periosteum.
This same process of ossification extends under all the internal surface of the periosteum and reaches the neighborhood of the epiphyses.
4. The right answer is D
The lumbar vertebrae are vertebrae of the caudal part of the spine. They are located between the thoracic vertebrae and the sacrum. They allow large flexion and extension movements, limited lateral flexion movements, and discrete rotations.
The most caudal lumbar vertebra articulates with the sacrum to constitute the lumbosacral hinge, junction between the mobile part and the fixed part of the column.
5. The right answer is B
Collagen is an extracellular protein found in vertebrates that forms insoluble fiber.
In bone, collagen is produced by osteoblasts and forms lamellae that give the bone its resistance to stretching. Collagen cartilage allows the joints to resist tensile forces.
6. The right answer is D
The bones forming the skeleton are articulated (by more or less mobile joints: if the bones of the skull remain welded to each other, the vertebral joints allow slight movements while maintaining their role of support, while the joints of the limbs assure rotations around axes with one (finger) or several (elbow) degrees of liberty).
7. The right answer is A
The appendicular skeleton of the human body is composed of 126 bones. The word appendicum is the adjective derived from the word appendix, which means part adjoined to something larger. From a functional point of view, the appendicular skeleton is intended for locomotion (lower limbs) of the axial skeleton, and for the manipulation of surrounding objects (upper limbs).
8. The right answer is C
The flat bones are composed of a spongy tissue in the center and a compact tissue on the outside. This type of bone structure forms cavities that protect the noble structures. This is the case of the skull, the thorax and the pelvis. In addition, they serve as an intersection with large muscle masses.
9. The right answer is B
The shoulder consists of three bones, the clavicle, the scapula or scapula and the humerus.
The mobility of the shoulder is provided mainly by the deltoid muscle, which provides power, and by the muscles of the cap, which initiate movement and stabilize the head of the humerus.
The rotator cuff is the name given to all the tendons that form a "hat" above the head of the humerus.
Between the head of the humerus and the acromion (outgrowth of the scapula), is a slip exchange called sub-acromial stock exchange.
10. The right answer is B
The axial skeleton consists of 80 articulated bones among 88 bones, all skeletal and mostly odd (and medial), forming the head and trunk. It includes the bones of the skull, spine, ribs and sternum, as well as the laryngeal bone, and represents 57 different articulated bones among 65 different bones.
Based on the information, it should be noted that bones absorb vitamin D) vitamin D.
Vitamin D is an organic substance necessary for the metabolism of the body. A large part of our needs (80%) is synthesized from a derivative of cholesterol under the action of UVB radiation from the sun, it is also for this reason that it is also called "sun vitamin" . The rest must be drawn from the diet.
It intervenes in the absorption of calcium and phosphorus by the intestines, then in the reabsorption by the kidneys. Indispensable for growth during infancy, it ensures the robustness of the human skeleton and prevents osteoporosis. After a certain age, the body does not synthesize vitamin D as easily.
The correct option is D
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B. the alkali metals and the transition metals.
C. the actinide series and the alkaline earth metals.
D. the lanthanide series and the actinide series.
Answer: D. the lanthanide series and the actinide series.
Explanation: I TOOK THE PENNFOSTER EXAM AND I GOT IT CORRECT!
c. Amniotic eggs
b. Wings
d. Feathers