Question
The diploid number of chromosomes in dogs is 78. Which of the following best explains how dogs maintain a diploid number of 78 when they reproduce?
Responses
Mitosis results in two daughter cells that have 78 chromosomes.
Mitosis results in two daughter cells that have 78 chromosomes.
Meiosis results in four daughter cells that are haploid with 39 chromosomes.
Meiosis results in four daughter cells that are haploid with 39 chromosomes.
Meiosis results in four daughter cells that are diploid with 78 chromosomes.
Meiosis results in four daughter cells that are diploid with 78 chromosomes.
Mitosis results in two daughter cells that are haploid with 39 chromosomes.
Responses
Mitosis results in two daughter cells that have 78 chromosomes.
Mitosis results in two daughter cells that have 78 chromosomes.
Meiosis results in four daughter cells that are haploid with 39 chromosomes.
Meiosis results in four daughter cells that are haploid with 39 chromosomes.
Meiosis results in four daughter cells that are diploid with 78 chromosomes.
Meiosis results in four daughter cells that are diploid with 78 chromosomes.
Mitosis results in two daughter cells that are haploid with 39 chromosomes.
Answers
GPT-4o mini
The best explanation for how dogs maintain a diploid number of 78 when they reproduce is:
**Meiosis results in four daughter cells that are haploid with 39 chromosomes.**
In sexual reproduction, dogs produce gametes (sperm and eggs) through meiosis, which reduces the chromosome number by half. Since dogs have a diploid number of 78 chromosomes, their gametes are haploid, containing 39 chromosomes each. When a sperm and an egg fuse during fertilization, the resulting zygote will again have the diploid number of 78 chromosomes, maintaining the species' chromosome number through generations.
**Meiosis results in four daughter cells that are haploid with 39 chromosomes.**
In sexual reproduction, dogs produce gametes (sperm and eggs) through meiosis, which reduces the chromosome number by half. Since dogs have a diploid number of 78 chromosomes, their gametes are haploid, containing 39 chromosomes each. When a sperm and an egg fuse during fertilization, the resulting zygote will again have the diploid number of 78 chromosomes, maintaining the species' chromosome number through generations.