Question

heredity and genetics questions

term definition

1. traits a. the study of genes and heredity.
2. genes b. large molecule that holds the \code\ for living things.
3. chromosomes c. characteristics like eye color and hair color.
4. dna d. structures made of dna found in the nucleus of a cell.
5. genetics e. sections of dna that determine specific traits.
6. histones f. the \jobs\ that a cell does to stay alive.
7. functions g. protein molecules that dna coils around.

1. what is the primary function of the nucleus in a cell?

a. to act as a \control center\ that manages the cells functions.
b. to produce the energy needed to keep the cell alive.
c. to coil protein molecules called histones.
d. to determine the amount of water inside the cell.

1. which of the following best defines \heredity\?

a. the process of dna coiling around proteins.
b. the study of how plants grow in gardens.
c. the passing down of traits from parents to children.
d. the total number of chromosomes in a species.

1. in humans, how many chromosomes are provided by each parent?

a. 46
b. 14
c. 23
d. 39

Explanation:

Step1: Match terms to definitions

1. Traits → C. Characteristics like eye color and hair color.
2. Genes → E. Sections of DNA that determine specific traits.
3. Chromosomes → D. Structures made of DNA found in the nucleus of a cell.
4. DNA → B. Large molecule that holds the "code" for living things.
5. Genetics → A. The study of genes and heredity.
6. Histones → G. Protein molecules that DNA coils around.
7. Functions → F. The "jobs" that a cell does to stay alive.

Step2: Answer multiple choice 8

Identify nucleus function: The nucleus controls cell functions.

Step3: Answer multiple choice 9

Define heredity: Heredity is trait passage between generations.

Step4: Answer multiple choice 10

Recall human chromosome inheritance: Each parent provides 23 chromosomes.

Answer:

1. Traits - C
2. Genes - E
3. Chromosomes - D
4. DNA - B
5. Genetics - A
6. Histones - G
7. Functions - F
8. a. To act as a "control center" that manages the cell's functions.
9. c. The passing down of traits from parents to children.
10. c. 23