Answer:
sex-linked- recessive
Explanation:
Sex linked recessive are those traits which are expressed even if one copy of the defective allele are present. They are passed from parents to offspring through X or Y chromosomes.
These disorders are more prevalent in men than women because women have two X chromosomes while men have only one. Females can also get X-linked disorder but they are very rare because female needs two copies of defective gene to develop disorder while men need only one.
For example: As you can see in the example image the gene is passed in daughters too but mostly they are carriers but men develop disease because they have only defective X chromosome that contain defective gene and no counter part to lower its effects.
One of the common x linked disease is hemophilia. You can see the pedigree of Hemophilia that men are getting more effected than women.
Hope it help!
The structure being described is the tricuspid valve.The right atrium is one of the two atria of the heart which function by receiving blood entering the heart, it is located to the right of the left atrium and superior to the much larger and more muscular right ventricle. Between the right atrium and right ventricle is a one way valve known as the tricuspid valve.
Answer:
The organisms in the marine ecosystem converts carbon dioxide to oxygen faster than organisms in other ecosystems.
Explanation:
Simply the organism in the ecosystem seaweed and phytoplanktons makes use of CO2, water, and sunlight to synthesize foods for energy production.During this processes, O2 is liberated as by products from the photolysis of water. These marine photsynthesizers ensures abundant supply of oxygen to the atmosphere.