A child is born with cystic fibrosis, an inherited recessive disorder. No one in the family (on either side) for several generations is known to carry the gene or have the disorder. How can this be explained? a. The genetic disorder formed from the mother's poor nutrition and prenatal care. b. There was a mutation in the DNA, either in one of the gametes or the fertilized egg. c. The child contracted the illness from another child when he was born. d. The child developed the disorder when he was born; it is a result of a birth defect.
How is sexual reproduction an advantage over asexual reproduction? a. Mitosis results in identical DNA in two new cells. b. The formation of gametes in mitosis allows for genetic variation. c. Meiosis results in harmful mutations in four new cells. d. The formation of gametes in meiosis allows for genetic variation.
Two parents have a child. Both parents carry a copy of the Huntingtons allele. What is the percent chance that the child does not inherit Huntingtons?
A child is born with cystic fibrosis. Which statement best describes the alleles possessed by the parents?
Living things require specific organic molecules in order to survive. The picture above represents some specific examples of foods that are mainly composed of one of these necessary organic molecules. The organic molecules found in these types of food are Responses A carbohydrates.carbohydrates. B proteins.proteins. C nucleic acidsnucleic acids D lipids.
Consider the individuals shaded in green in the diagram. What kind of allele results in the trait the individuals are expressing?
People who get better grades in school will be more successful in life. agree or disagree 5-7 sentences in length.
how does the text explore the relationship between humans and animals? Is black beauty harmed by his relationship with humans? Does he benefit in any way? Cite evidence from the text, your own experience, and other literature, art, or history in your answer
People who get better grades in school will be more successful in life. agree or disagree response must be at least 5-7 sentences in length.
Which of the following describes the photic zone of the open ocean? ANSWER IF YOU'RE 100 PERCENT SURE!!! THIS IS FOR A TEST A. The part of the ocean that CANNOT support photosynthesis B. The darkest part of the ocean, where NO light can penetrate C. The shallowest part of the ocean where there is enough light to support plant life.
