Question
7.LS3.2) A scientist is comparing two types of cell division: mitosis and meiosis. She observes that mitosis results in two daughter cells, while meiosis results in four daughter cells. Additionally, she notices that the cells produced by meiosis contain half the number of chromosomes compared to the original cell.
Which statement best explains the difference between mitosis and meiosis?
(5 Points)
Mitosis creates four genetically identical daughter cells, while meiosis creates two genetically identical daughter cells.
Mitosis creates two genetically identical daughter cells, while meiosis creates four genetically diverse daughter cells with half the chromosome number.
Mitosis and meiosis both create four genetically identical daughter cells, but meiosis produces cells with half the chromosome number.
Mitosis creates four genetically diverse daughter cells, while meiosis creates two genetically identical daughter cells.
21.(7.LS3.3) In a family, the trait for flower color in a plant is determined by a single gene with two alleles:
P (Purple) is dominant,
p (white) is recessive.
A plant with the genotype Pp is crossed with a plant that has the genotype pp.
What is the probability that the offspring will have purple flowers?
(5 Points)
25%
50%
75%
100%
Which statement best explains the difference between mitosis and meiosis?
(5 Points)
Mitosis creates four genetically identical daughter cells, while meiosis creates two genetically identical daughter cells.
Mitosis creates two genetically identical daughter cells, while meiosis creates four genetically diverse daughter cells with half the chromosome number.
Mitosis and meiosis both create four genetically identical daughter cells, but meiosis produces cells with half the chromosome number.
Mitosis creates four genetically diverse daughter cells, while meiosis creates two genetically identical daughter cells.
21.(7.LS3.3) In a family, the trait for flower color in a plant is determined by a single gene with two alleles:
P (Purple) is dominant,
p (white) is recessive.
A plant with the genotype Pp is crossed with a plant that has the genotype pp.
What is the probability that the offspring will have purple flowers?
(5 Points)
25%
50%
75%
100%
Answers
GPT-4o mini
### Question 7: Difference Between Mitosis and Meiosis
The best statement that explains the difference between mitosis and meiosis is:
**Mitosis creates two genetically identical daughter cells, while meiosis creates four genetically diverse daughter cells with half the chromosome number.**
### Question 21: Probability of Purple Flowers
To solve the question regarding the flower color in the plants:
1. Parent genotypes: Pp (purple) and pp (white).
2. Possible gametes from each parent:
- Pp can produce gametes P and p.
- pp can only produce gamete p.
3. Possible offspring genotypes:
- P (from Pp) + p (from pp) = Pp (purple)
- p (from Pp) + p (from pp) = pp (white)
4. Possible combinations:
- Pp (purple)
- pp (white)
Ratio of offspring:
- 1 Pp (purple): 1 pp (white)
Probability of purple flowers (Pp):
- Out of two possible offspring, one has purple flowers.
Thus, the probability that the offspring will have purple flowers is **50%.**
The best statement that explains the difference between mitosis and meiosis is:
**Mitosis creates two genetically identical daughter cells, while meiosis creates four genetically diverse daughter cells with half the chromosome number.**
### Question 21: Probability of Purple Flowers
To solve the question regarding the flower color in the plants:
1. Parent genotypes: Pp (purple) and pp (white).
2. Possible gametes from each parent:
- Pp can produce gametes P and p.
- pp can only produce gamete p.
3. Possible offspring genotypes:
- P (from Pp) + p (from pp) = Pp (purple)
- p (from Pp) + p (from pp) = pp (white)
4. Possible combinations:
- Pp (purple)
- pp (white)
Ratio of offspring:
- 1 Pp (purple): 1 pp (white)
Probability of purple flowers (Pp):
- Out of two possible offspring, one has purple flowers.
Thus, the probability that the offspring will have purple flowers is **50%.**