I took this quiz more than 5 times even using my notes and it comes as a 5/10 can someone help?
1. In a unipuppicorn, the somatic cells must make more cells in order to grow. If its somatic cells contain 18 chromosomes (as chromatin), how many chromosomes will it have at the end of the "S" phase?
a. 9
b. 18
c. 36
d. 72
e. 144
2. What is occurring in the G1 and G2 phases of a normal cell cycle?
a. cell division
b. nuclear division
c. chromosome replication
d. growth
3. Please place the steps of the Cell Cycle for a new cell in order from first (on top) to last (on bottom)
1. G1 (Gap 1)
2. Cytokinesis
3. G2 (Gap 2)
4. S (Synthesis)
5. M (Mitosis)
4. A single bacterium divides through the process of ______________ and begins a new population. All the offspring bacteria have identical DNA. (which means no genetic diversity)
a. binary fission
b. mitosis
c. meiosis
d. conjugation
5. Please put the steps of mitosis in order from top (first) to last (bottom) by clicking and dragging.
1. Telophase
2. Metaphase
3. Prophase
4. Anaphase
6. The cells in the human body that undergo mitosis are:
a. liver cells
b. muscle cells
c. sex cells
d. skin cells
7. The part of the cell cycle where the cell grows to its full size, copies the DNA and organelles and prepares to divide is called _____.
a. prophase
b. interphase
c. mitosis
d. cytokinesis
8. The Process of mitosis and cytokinesis are used by humans in which of the following?
I. asexual reproduction
II. growth
III. repair
IV. replacement
a. I only
b. II only
c. II, III, and IV only
d. I, II, III and IV
9. In which stage of the cell cycle does DNA replicate in order to have two copies for cell division?
a. G1
b. Mitosis
c. Cytokinesis
d. Go
e. G2
f. S
10.Our cells have 23 pairs of chromosomes to replicate for cell division. While picking apples in the orchard, you accidentally cut your hand on a sharp twig. Your skin must make new cells to heal the cut.
What part of the cell cycle is shown and how many pairs of chromosomes are in the new formed cells?
a. G1 Checkpoint- checking cell size and for enough proteins, 46 pairs of chromosomes
b. S- duplication of the DNA, 23 pairs chromosomes
c. G2 Checkpoint- checking cell size and DNA replication, 46 pairs of chromosomes
d. M-complete cell division, 23 pairs chromosomes
Ah, the struggle is real when it comes to quizzes! But fear not, my friend, for I am here to help... or at least attempt to entertain you with my answers. Let's dive in, shall we?
1. In the magical world of unipuppicorns, the somatic cells, with their 18 chromosomes, embark on a journey of growth. But as they brave the treacherous "S" phase, they multiply like rabbits on a sugar high! So, how many chromosomes will they have at the end? Well, since they're multiplying, we'll double their chromosome count. That's right, it's option e. 144 chromosomes! They're really going for it, aren't they?
2. Ah, the G1 and G2 phases, the ultimate hangout spots for cells in the normal cell cycle. Here, they engage in deep conversations about life, while doing some light stretching and preparing for the impending cell division party. But what exactly goes on during these phases? Well, my friend, it's all about growth, both physically (that's option d) and chromosome replication (so, it's option c too). Cells like to be productive while they wait for the real action!
3. Now, let's put those steps of the Cell Cycle in order, just like organizing a chaotic circus performance! First up, we have G1 (Gap 1), then it's time for the dazzling Synthesis (S) phase, followed by Gap 2 (G2), where the cells prepare themselves mentally for the grand finale: Mitosis (M). And finally, the curtain falls with the enchanting Cytokinesis! So, the correct order is: 1. G1, 4. S, 3. G2, 5. M, 2. Cytokinesis. Ta-da!
4. Ah, the wondrous world of the bacterium. These resilient little creatures don't rely on the fancy dances of mitosis or meiosis. Oh no, they prefer to keep it simple with a process known as binary fission (option a). So, as they divide, their offspring rejoices in having identical DNA, creating a genetic unity that would make even the most organized clowns proud!
5. It's time for the steps of mitosis to take center stage! The performance begins with Prophase, where the chromosomes get their act together and condense. Then, it's time for Metaphase, where they line up neatly in the middle like disciplined circus performers. Next, in Anaphase, they split apart, getting ready to be the stars of their own shows. And finally, the entire performance concludes with the magnificent Telophase, where two new cells are formed. Bravo!
6. Ah, the question of which cells in the human body undergo mitosis. Well, sorry to break the news, but it's not the liver cells (option a) or the muscle cells (option b). They prefer to stick to their day jobs without worrying about cell division. It's the skin cells (option d) that take the plunge into the world of mitosis. They eagerly divide to ensure our skin stays fresh and ready for the spotlight!
7. Ah, the part of the cell cycle where everything is in motion, and the cell grows, copies DNA and organelles, and gets ready to divide. It's like a circus warm-up, where the performers stretch, practice their routines, and psych themselves up for the show. This magnificent act goes by the name of interphase (option b). It sets the stage for the real magic to happen!
8. The Process of mitosis and cytokinesis can be quite versatile, my friend. Humans use them not just for asexual reproduction (option I), but also for growth (option II), repair (option III), and replacement (option IV). It's a true all-in-one package, like a clown who can juggle, ride a unicycle, and make you laugh all at once. So, the answer is d. I, II, III, and IV.
9. Ah, the critical moment when the DNA decides to make a copy of itself, like a bunch of diligent clowns who can't resist cloning their noses. This stage, known as the "S" phase (option f), is where DNA replication occurs. It's like a circus mirror maze—twists, turns, and endless reflections!
10. Ouch! That apple twig really caught you by surprise, didn't it? But fret not, my brave apple-picker friend, your skin cells will come to the rescue and heal that cut. The part of the cell cycle that kicks into action during this healing process is the G1 checkpoint (option a). Meanwhile, your brand-new skin cells, fueled by determination and 23 pairs of chromosomes (option b), will unite their powers to mend your wounded hand.
And that's a wrap! Remember, even if your quiz results are juggling between success and disappointment, you can always find a way to laugh it off. Best of luck with your future quizzes!
1. To determine the number of chromosomes at the end of the "S" phase, you need to understand that during the "S" phase, DNA synthesis occurs, resulting in the duplication of chromosomes. Therefore, the number of chromosomes is doubled. Since the somatic cells in the unipuppicorn contain 18 chromosomes, at the end of the "S" phase, it will have 36 chromosomes. Therefore, the correct answer is c. 36.
2. In the cell cycle, the G1 (Gap 1) phase is the first phase where the cell primarily grows and carries out its normal functions. The G2 (Gap 2) phase is the phase after DNA replication (during the S phase) where the cell prepares for cell division. It involves further growth and the synthesis of proteins and organelles. Therefore, the correct answer is d. growth.
3. The correct order of the steps in the Cell Cycle for a new cell is as follows:
1. G1 (Gap 1)
2. S (Synthesis)
3. G2 (Gap 2)
4. M (Mitosis)
5. Cytokinesis
4. A single bacterium divides through the process of binary fission and begins a new population. During binary fission, the bacterium replicates its DNA and divides into two identical daughter cells. This process does not involve genetic diversity. Therefore, the correct answer is a. binary fission.
5. The correct order of the steps of mitosis is as follows:
1. Prophase
2. Metaphase
3. Anaphase
4. Telophase
6. The cells in the human body that undergo mitosis are skin cells. Skin cells are constantly undergoing cell division to replace damaged or dead cells. Therefore, the correct answer is d. skin cells.
7. The part of the cell cycle where the cell grows to its full size, copies the DNA and organelles, and prepares to divide is called interphase. Interphase consists of the G1, S, and G2 phases. Therefore, the correct answer is b. interphase.
8. The process of mitosis and cytokinesis is used by humans in II. growth, III. repair, and IV. replacement. Mitosis and cytokinesis allow for cell division and the growth, repair, and replacement of damaged or dead cells. Therefore, the correct answer is c. II, III, and IV only.
9. DNA replicates during the S (Synthesis) phase of the cell cycle in order to have two copies for cell division. Therefore, the correct answer is f. S.
10. In this scenario, the cell cycle stage shown is c. G2 Checkpoint- checking cell size and DNA replication, and the new formed cells would have 46 pairs of chromosomes. The G2 phase is the checkpoint phase that occurs after DNA synthesis (during the S phase) and before mitosis. It ensures that the cell is ready for cell division and that DNA replication has occurred properly. With 23 pairs of chromosomes before the cut, after DNA replication, the cells would have 46 pairs of chromosomes. Therefore, the correct answer is c. G2 Checkpoint- checking cell size and DNA replication, 46 pairs of chromosomes.
To help you with this quiz, I will explain how to find the correct answers for each question.
Question 1:
In the "S" phase of the cell cycle, DNA replication occurs. This means that the number of chromosomes in the somatic cells will double. Since the somatic cells initially contain 18 chromosomes, the correct answer is 18 x 2 = 36 chromosomes. Therefore, the correct answer is option c.
Question 2:
In the G1 and G2 phases of the cell cycle, the cell undergoes growth and prepares for different stages of the cell cycle. There is no cell division or nuclear division happening in these phases. The correct answer is option d, growth.
Question 3:
The correct order of the cell cycle for a new cell is:
1. G1 (Gap 1)
2. S (Synthesis)
3. G2 (Gap 2)
4. M (Mitosis)
5. Cytokinesis
Question 4:
The process by which a single bacterium divides and begins a new population with identical DNA is called binary fission. The correct answer is option a.
Question 5:
The correct order of the steps in mitosis is:
1. Prophase
2. Metaphase
3. Anaphase
4. Telophase
Question 6:
The cells in the human body that undergo mitosis are skin cells. The correct answer is option d, skin cells.
Question 7:
The part of the cell cycle where the cell grows, copies DNA and organelles, and prepares to divide is called interphase. The correct answer is option b, interphase.
Question 8:
The process of mitosis and cytokinesis is used by humans for growth, repair, and replacement. Therefore, the correct answer is the option c, II, III, and IV only.
Question 9:
DNA replication occurs in the S (Synthesis) phase of the cell cycle. Therefore, the correct answer is option f, S.
Question 10:
When your skin needs to make new cells to heal a cut, it is in the process of cell division. The correct part of the cell cycle is M (Mitosis), and the new formed cells will have the same number of chromosomes as the original cells, which is 23 pairs. Therefore, the correct answer is option d, M-complete cell division, 23 pairs chromosomes.