Question 1

Which of the following best explains why offspring produced by sexual reproduction are genetically different from their parents?

Accepted Answer

Because sexual reproduction combines genes from two parents, resulting in unique gene combinations.

Question 2

A horticulturalist wants to propagate an orchid with a rare flower color. Which method should they use to ensure all offspring have the same flower color, and why?

Accepted Answer

Asexual reproduction, because it produces clones identical to the parent.

Question 3

Which of the following statements about genes is correct?

Accepted Answer

Genes are segments of DNA that code for proteins, determining traits.

Question 4

What is the term for the specific location of a gene on a chromosome?

Accepted Answer

Locus

Question 5

Which of the following best describes the genome?

Accepted Answer

All the genes and other DNA inherited from parents.

Question 6

A single-celled eukaryote reproduces by mitosis. Which of the following is true about its offspring?

Accepted Answer

They are genetically identical to the parent cell.

Question 7

Which process is responsible for the transmission of hereditary traits from parents to offspring?

Accepted Answer

Inheritance

Question 8

In humans, how many chromosomes are found in a typical somatic cell?

Accepted Answer

$$46$$

Question 9

Which of the following is a source of genetic variation in asexually reproducing organisms?

Accepted Answer

Mutations

Question 10

Which statement best describes the relationship between DNA, genes, and chromosomes?

Accepted Answer

Genes are segments of DNA located on chromosomes.

Question 11

A researcher observes that two siblings have different hair colors, even though they share the same parents. Which concept best explains this observation?

Accepted Answer

Genetic variation results from sexual reproduction.

Question 12

Which of the following is NOT a characteristic of asexual reproduction?

Accepted Answer

Offspring inherit genes from two parents.

Question 13

During fertilization in sexual reproduction, what occurs?

Accepted Answer

Male and female gametes unite, combining genes from both parents.

Question 14

Which of the following best explains why a clone of a plant may still show some genetic differences from its parent?

Accepted Answer

Mutations can occur during DNA replication.

Question 15

Which of the following is true regarding the packaging of DNA in eukaryotic cells?

Accepted Answer

Each chromosome contains a single long DNA molecule coiled with proteins.

Question 16

If a mutation occurs in the DNA of a gamete, what is the most likely consequence?

Accepted Answer

The mutation can be inherited by the offspring.

Question 17

Which of the following best describes the role of proteins in gene expression?

Accepted Answer

Proteins are coded by genes and determine physical traits.

Question 18

Which of the following scenarios would most likely result in offspring with the greatest genetic variation?

Accepted Answer

Sexual reproduction in humans.

Question 19

Which of the following is a direct result of DNA replication in a eukaryotic cell?

Accepted Answer

Transmission of hereditary traits to offspring.

Question 20

Which of the following best describes the difference between somatic cells and gametes in humans?

Accepted Answer

Somatic cells have 46 chromosomes, while gametes have 23.

Inheritance, Genes, and Reproduction: Study Notes for General Biology

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드