15. Use The Table Below To Choose The Incorrect Statement.$\[ \begin{tabular}{|l|c|c|} \hline \multicolumn{1}{|c|}{\textbf{Organism}} & \textbf{n} & \textbf{2n} \\ \hline Goldfish & & \\ \hline Potato & 24 & \\ \hline Humans & & 46 \\ \hline Pea &

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In the field of biology, understanding the concept of ploidy is crucial for making accurate statements about organisms. Ploidy refers to the number of sets of chromosomes present in an organism's cells. In this article, we will explore the concept of ploidy and use a table to identify the incorrect statement regarding the number of chromosomes in various organisms.

Understanding Ploidy

Ploidy is a fundamental concept in biology that helps us understand the genetic makeup of organisms. The number of chromosomes in an organism's cells can vary, resulting in different types of ploidy. The most common types of ploidy are diploid (2n) and haploid (n). Diploid organisms have two sets of chromosomes, one from each parent, while haploid organisms have a single set of chromosomes.

The Table: A Closer Look

The table below provides information about the number of chromosomes in various organisms.

Organism n 2n
Goldfish
Potato 24
Humans 46
Pea

Analyzing the Table

Let's analyze the table and identify the incorrect statement. We will start by looking at the number of chromosomes in each organism.

  • Goldfish: The number of chromosomes in goldfish is not specified in the table. However, it is known that goldfish are diploid, with a chromosome number of 2n = 100.
  • Potato: The number of chromosomes in potato is 24, which is a haploid number. This means that the potato is haploid, and the 2n value is not applicable.
  • Humans: The number of chromosomes in humans is 46, which is a diploid number. This is correct, as humans are diploid organisms.
  • Pea: The number of chromosomes in pea is not specified in the table. However, it is known that pea is diploid, with a chromosome number of 2n = 14.

Identifying the Incorrect Statement

Based on the analysis of the table, we can identify the incorrect statement. The incorrect statement is the one that does not match the known ploidy of the organism.

  • Goldfish: The number of chromosomes in goldfish is not specified in the table, but it is known that goldfish are diploid, with a chromosome number of 2n = 100. Therefore, the correct statement is that goldfish have 100 chromosomes.
  • Potato: The number of chromosomes in potato is 24, which is a haploid number. This means that the potato is haploid, and the 2n value is not applicable. Therefore, the correct statement is that potato has 24 chromosomes.
  • Humans: The number of chromosomes in humans is 46, which is a diploid number. This is correct, as humans are diploid organisms.
  • Pea: The number of chromosomes in pea is not specified in the table, but it is known that pea is diploid, with a chromosome number of 2n = 14. Therefore, the correct statement is that pea has 14 chromosomes.

Conclusion

In conclusion, the incorrect statement in the table is the one that does not match the known ploidy of the organism. The correct statements are:

  • Goldfish have 100 chromosomes.
  • Potato has 24 chromosomes.
  • Humans have 46 chromosomes.
  • Pea has 14 chromosomes.

By understanding the concept of ploidy and analyzing the table, we can identify the incorrect statement and make accurate statements about organisms.

References

Discussion

The concept of ploidy is crucial in biology, as it helps us understand the genetic makeup of organisms. The table provided in this article highlights the importance of accurate information about the number of chromosomes in various organisms. By analyzing the table and identifying the incorrect statement, we can make accurate statements about organisms and understand the concept of ploidy better.

Category

  • Biology
  • Genetics
  • Ploidy
  • Chromosomes
    Frequently Asked Questions: Ploidy and Chromosomes =====================================================

In the previous article, we explored the concept of ploidy and analyzed a table to identify the incorrect statement regarding the number of chromosomes in various organisms. In this article, we will answer some frequently asked questions about ploidy and chromosomes.

Q: What is ploidy?

A: Ploidy is the number of sets of chromosomes present in an organism's cells. The most common types of ploidy are diploid (2n) and haploid (n). Diploid organisms have two sets of chromosomes, one from each parent, while haploid organisms have a single set of chromosomes.

Q: What is the difference between diploid and haploid organisms?

A: Diploid organisms have two sets of chromosomes, one from each parent, while haploid organisms have a single set of chromosomes. This means that diploid organisms have a total of 2n chromosomes, while haploid organisms have a total of n chromosomes.

Q: How do I determine the ploidy of an organism?

A: To determine the ploidy of an organism, you need to know the number of chromosomes in its cells. You can do this by analyzing the organism's chromosomes using techniques such as karyotyping or chromosome counting.

Q: What is the significance of ploidy in biology?

A: Ploidy is significant in biology because it helps us understand the genetic makeup of organisms. By knowing the ploidy of an organism, we can understand its genetic characteristics and how it will pass on its traits to its offspring.

Q: Can an organism have more than two sets of chromosomes?

A: Yes, an organism can have more than two sets of chromosomes. This is known as polyploidy. Polyploidy occurs when an organism has three or more sets of chromosomes. This can happen naturally or through human intervention.

Q: What are some examples of polyploid organisms?

A: Some examples of polyploid organisms include:

  • Tetraploid wheat: This is a type of wheat that has four sets of chromosomes, rather than the usual two.
  • Polyploid potatoes: Some varieties of potatoes are polyploid, with four or more sets of chromosomes.
  • Polyploid plants: Some plants, such as certain species of grasses and cereals, are naturally polyploid.

Q: Can polyploidy occur in animals?

A: Yes, polyploidy can occur in animals. However, it is relatively rare and usually occurs in certain species of fish and amphibians.

Q: What are the benefits of polyploidy?

A: Polyploidy can have several benefits, including:

  • Increased genetic diversity: Polyploidy can increase the genetic diversity of an organism, which can lead to improved fitness and adaptability.
  • Improved crop yields: Polyploid crops can have improved yields and be more resistant to disease.
  • New traits: Polyploidy can introduce new traits into an organism, such as improved drought tolerance or resistance to pests.

Q: What are the challenges of polyploidy?

A: Polyploidy can also have several challenges, including:

  • Genetic instability: Polyploidy can lead to genetic instability, which can result in abnormal development or reduced fertility.
  • Reduced fertility: Polyploidy can reduce fertility in some organisms, making it difficult to breed them.
  • Difficulty in breeding: Polyploidy can make it difficult to breed certain organisms, as the extra set of chromosomes can make it challenging to produce viable offspring.

Conclusion

In conclusion, ploidy is a complex and important concept in biology. By understanding the concept of ploidy and its significance in biology, we can better appreciate the genetic makeup of organisms and how it affects their traits and behavior. We hope that this article has answered some of your frequently asked questions about ploidy and chromosomes.

References

Discussion

The concept of ploidy is crucial in biology, as it helps us understand the genetic makeup of organisms. By analyzing the table and identifying the incorrect statement, we can make accurate statements about organisms and understand the concept of ploidy better. We hope that this article has provided you with a better understanding of ploidy and its significance in biology.

Category

  • Biology
  • Genetics
  • Ploidy
  • Chromosomes