In a population of 10,000 individuals, 300 men are afflicted with a recessive, x-linked disease. 18 woman would be expected to be afflicted in this population
both sickle cell disease and cystic fibrosis. dominant X-linked disease. Gene variations on the X chromosome are the root cause of X-linked diseases. A variation in the one copy of the gene present in each cell is what causes the condition in males (who have only one X chromosome).
Red-green color blindness and hemophilia A: Red-green color blindness are two examples of X-linked diseases. Red-green color blindness is simply the inability to distinguish between the many hues of red and green.
Males who are hemizygous (i.e., have only one X chromosome) will fully express an X-linked disease. Females, who have two X chromosomes, on the other hand, will typically be carriers of the abnormality and are hence typically asymptomatic.
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Between the vertebrae are small spaces known as intervertebral canals that allow spinal nerves to exit the spinal cord and connect to the various regions of the body. There are 5 major regions of the spine: Cervical: The 7 vertebrae in the neck form the cervical region of the spine.
Answer:
There are eight major terrestrial biomes: tropical wet forests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. ... Other biomes, such as deserts and tundra, have low primary productivity due to extreme temperatures and a shortage of available water.
Explanation:
Answer:
The similar structure of the limbs indicates that the organisms share a common ancester.
Explanation:
The limb structures of human and female limbs are homologous, indicating that they evolved from a common ancestor.
