Describe the chromosomes needed for an embryo to become a female and those needed for an embryo to become a male.
Female eggs only have the X (female) chromosomes, while the male sperm cells have both the X and Y (male) chromosomes. If the X from the male and X from the female unite, then the child will be female. If the Y from the male and X from the female unite, then the child will be male.
Hereditary diseases are passed from one generation to the next through mutated genes.
Explain the causes and symptoms of sickle cell anemia.
Sickle cell anemia is caused by the red blood cells' inability to properly form hemoglobin. The result is an inability to transfer oxygen and blood throughout the body.
Support the idea that genetic testing and engineering could have dangerous consequences for society.
Our genetic code is the information that determines who we are. If scientists and doctors are allowed to tamper with this genetic code, they are fundamentally changing us as people. This has serious ethical and religious implications that need to be thoroughly investigated before genetic engineering is used.
Summarize the role of a genetic counselor.
Genetic counselors are important because they help families to identify the probability of developing or transmitting a hereditary disease. In addition, they can provide information about appropriate genetic testing to help in the decision-making process. Finally, they provide support throughout the genetic testing process.
Discuss the general causes of chromosomal diseases.
Chromosomal diseases occur when an abnormality occurs. These could include either the wrong number of chromosomes or an incomplete chromosome.
Compare and contrast dominant and recessive genes.
As the name suggests, the traits controlled by dominant genes are more likely to appear in our children. Recessive genes will only have an effect when the corresponding dominant gene isn't present.
Did you find these answers helpful?