Table of contents

1. Introduction to Genetics51m
2. Mendel's Laws of Inheritance3h 37m
3. Extensions to Mendelian Inheritance2h 41m
4. Genetic Mapping and Linkage2h 28m
5. Genetics of Bacteria and Viruses1h 21m
6. Chromosomal Variation1h 48m
7. DNA and Chromosome Structure56m
8. DNA Replication1h 10m
9. Mitosis and Meiosis1h 34m
10. Transcription1h 0m
11. Translation58m
12. Gene Regulation in Prokaryotes1h 19m
13. Gene Regulation in Eukaryotes44m
14. Genetic Control of Development44m
15. Genomes and Genomics1h 50m
16. Transposable Elements47m
17. Mutation, Repair, and Recombination1h 6m
18. Molecular Genetic Tools19m
- Genetic Cloning
  9m
- Methods for Analyzing DNA
  9m
19. Cancer Genetics29m
- Overview of Cancer
  21m
- Cancer Mutations
  7m
20. Quantitative Genetics1h 26m
21. Population Genetics50m
- Hardy Weinberg
  19m
- Allelic Frequency Changes
  31m
22. Evolutionary Genetics29m

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

Genetics

6. Chromosomal Variation

Chromosomal Mutations: Aberrant Euploidy

Previous problemNext problem

2:19 minutes

Problem 8a

Textbook Question

If the haploid number for a plant species is 4, how many chromosomes are found in a member of the species that has one of the following characteristics? Explain your reasoning in each case.
Diploidy

Verified step by step guidance

Understand the concept of haploid number: The haploid number (n) represents the number of chromosomes in a single set of the organism's genome. For this plant species, the haploid number is given as 4 (n = 4).

Define diploidy: Diploidy refers to an organism having two complete sets of chromosomes, one set inherited from each parent. This means the total number of chromosomes in a diploid organism is 2n.

Apply the formula for diploidy: To calculate the total number of chromosomes in a diploid organism, use the formula:

2 \times n

. Substitute the haploid number (n = 4) into the formula.

Perform the multiplication: Multiply 2 by the haploid number (4) to determine the total number of chromosomes in a diploid organism. This step provides the chromosome count for diploidy.

Explain the reasoning: Since diploidy involves two sets of chromosomes, the chromosome count is double the haploid number. This ensures the organism has a complete set of genetic material from both parents.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above

Video duration:

Play a video:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Haploid and Diploid

Haploid refers to a cell or organism that has a single set of chromosomes, denoted as 'n'. In contrast, diploid cells contain two sets of chromosomes, represented as '2n'. For the plant species in question, with a haploid number of 4, the diploid number would be 8, as diploidy means having two complete sets of chromosomes.

Chromosome Number

The chromosome number is the total count of chromosomes in a cell. In diploid organisms, this number is double that of haploid organisms. Understanding the relationship between haploid and diploid states is crucial for determining the chromosome count in various life stages of an organism, such as gametes and somatic cells.

Plant Reproduction

Plants typically reproduce through a life cycle that alternates between haploid (gametophyte) and diploid (sporophyte) stages. In this context, knowing that the diploid stage has twice the number of chromosomes as the haploid stage helps in understanding how genetic information is passed on and how traits are expressed in the plant species.

Watch next

Master Aberrant Euploid with a bite sized video explanation from Kylia

Start learning

Related Videos

Related Practice

Textbook Question

If the haploid number for a plant species is 4, how many chromosomes are found in a member of the species that has one of the following characteristics? Explain your reasoning in each case.

Tetraploidy

344

views

Textbook Question

If the haploid number for a plant species is 4, how many chromosomes are found in a member of the species that has one of the following characteristics? Explain your reasoning in each case.

Triploidy

558

views

Textbook Question

If the haploid number for a plant species is 4, how many chromosomes are found in a member of the species that has one of the following characteristics? Explain your reasoning in each case.

Octaploidy

372

views

Textbook Question

If the haploid number for a plant species is 4, how many chromosomes are found in a member of the species that has one of the following characteristics? Explain your reasoning in each case.

Pentaploidy

470

views

Textbook Question

Describe the origin of cultivated American cotton.

574

views

Textbook Question

Mating between a male donkey (2n = 62) and a female horse (2n = 64) produces sterile mules. Recently, however, a very rare event occurred—a female mule gave birth to an offspring by mating with a horse.

Why is it very unlikely that the offspring will have fully horse-like genetic characteristics?

654

views

Textbook Question

How many chromosomes does the mule–horse offspring carry?

4167

views

Textbook Question

Determine how many chromosomes are in the mule karyotype, and explain why mules are generally sterile.

426

views

Show more practices