Question 1. What determines the similarities in anatomical features among organisms?
A. genes and chromosomes
B. shared habitat
C. geographical location
D. weather and climate
Question 2. What is the relationship among cells, chromosomes, genes, and DNA?
A. Tightly wound strands of chromosomes contain genes and are found in cells. The genes are coded sequences of nucleotide read by DNA.
B. DNA is a double-helix structure found in the cell nucleus. Chromosomes straighten out the DNAso the code can be read by genes.
C. DNA is straightened by genes which are contained in the chromosomes of a cell.
D. Chromosomes are tightly wound strands of DNA located in cells. Genes are sections of DNA.
Question 3. What is true of all body cells except sex cells?
A. Each body cell contains the same number and kinds of chromosomes for that organism. The chromosomes contain the same number and kinds of genes for that individual.
B. Each cell type carries chromosomes and genes that identify it as that specific type of cell. For example, skin cells have different chromosomes and genes than muscle cells.
C. While each cell type in the body contains the same kinds of genes, they are organized on different chromosomes depending on the cell type.
D. While each cell in the body contains the same number of chromosomes, each cell type has different genes along those chromosomes.
Question 4. A botanist has the juiciest tomatoes in his backyard garden.
What is true about these tomatoes?
A. They are grown by someone with a green thumb, so they grow better.
B. They are saltier, so they absorb more water from their surroundings, making them juicier.
C. They are watered more often than tomatoes grown in other gardens.
D. They are grown from seeds that come from plants that produce juicier fruit.
Question 5. Which headline would be an example of genetic engineering?
A. Mrs. O'Hara Gives Birth to Fourth Redhead
B. Bacteria Make Human Insulin
C. Liver Cells Improves Clotting Time in Hemophilia Patients
D. Farmer Brown's Pigs: Best Quality Ham for the Money
-1
Answer: A
Explanation: Genes and chromosomes determine the similarities in anatomical features among organisms.
-2
Answer: D
Explanation: Chromosomes are tightly wound strands of DNA located in cells. Genes are sections of DNA.
-3
Answer: A
Explanation: Each body cell contains the same number and kinds of chromosomes for that organism. The chromosomes contain the same number and kinds of genes for that individual. The exception to this rule is sex cells, which have half the number of chromosomes as normal body cells because they combine with another sex cell during fertilization.
-4
Answer: D
Explanation: The tomatoes are grown from seeds that come from plants that produce juicier fruit. Juiciness is a trait that can be passed down through genes.
-5
Answer: B
Explanation: "Bacteria Make Human Insulin" would be an example of genetic engineering. In this case, scientists have genetically engineered bacteria by inserting human insulin genes into them so that they produce insulin that can be used by humans.
Please correct me if I misunderstood anything!