Question

Why tetrads do not form during mitosis? This might be more of a conceptual question than...

Why tetrads do not form during mitosis? This might be more of a conceptual question than just a simple answer of " because meiosis only happens in sex chromosomes and tetrads only form during meiosis " or " because the synaptonemal protein complex attaches the tetrads during meiosis" Another way of asking my question would be " how can we explain in detail what causes a cell to undergo meiosis vs mitosis OTHER THAN HAPPENING IN AUTOSOMAL VS SEX CHROMOSOMES?

Thank you!

Science   Biology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The cells do not simply undergo mitosis or meiosis based upon the ploidy of chromosomes present in them. A very complex battery of molecular mechanisms exists behind the decision whether a cell undergoes haploid or diploid division.

The cells contain different type of division proteins, one of which are recombination proteins. The presence of these poroteins over correct location of cell and during the correct time, i.e. when the chromosomes have duplicated, results in formation of a synaptic complex. This synaptic complex, along with the presence of cyclin dependent kinases undergoes physical recombination and consequently meiosis. Hence, the optimized presence of each of the division proteins as well as their orientation as well as activation determines the nature of cellular division.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
I realize this is more than one question, however since they are already answered can someone...
I realize this is more than one question, however since they are already answered can someone help me go over them to ensure they are correct? I have boldened the correct answers and will rate. THANKS The replicative form of nucleic acid in filamentous phages is: dsDNA, dsRNA, positive ssRNA, negative ssDNA Enveloped viruses possess _____ : peptidoglycan layer, mucolic acids, an outer lipid bilayer, nucleocapsid only True or False: In a lyti phage infection, the viral DNA is integrated...
QUESTION 29 In a synapse, neurotransmitters do not keep bonding to receptors over and over because:...
QUESTION 29 In a synapse, neurotransmitters do not keep bonding to receptors over and over because: A. they are non polar molecules B. the receptors are quickly removed C. scientists do not know D. they are quickly removed or broken down by an enzyme E. neurotransmitters do not bond to receptors 1.5 points    QUESTION 30 In the cell, proteins that are synthesized by the cell, are normally  produced  directly by (what organelle makes a protein) A. the ribosomes B. the mitochondria...
1. Which of the following in not directly involved in the production of proteins? a. Golgi...
1. Which of the following in not directly involved in the production of proteins? a. Golgi complex b. Plasma membrane c. Rough endoplasmic reticulum d. Nucleus 2. A new coach tells his team that the reason they get fatigued after three minutes of exercise is because they do not have enough oxygen in their red blood cells. He has no data to support his position. Therefore his advice is? a. Valid since he is an expert working with people b....
Can you paraphrase the following rationale for me: Male Reproductive System 1. Which of the following...
Can you paraphrase the following rationale for me: Male Reproductive System 1. Which of the following accurately describes spermiogenesis? a. Occurs before puberty b. Involves stem cells, meiosis, and spermatogenesis c. Involves cytodifferentiation of early spermatids d. Occurs in diploid cells e. Results in the formation of primary spermatocytes Rationale: Spermatogenesis, the first part of sperm production involves mainly mitosis and meiosis and is followed by spermiogenesis, the final differentiation process occurring in the haploid male germ cells. Spermatogenesis begins...
QUESTION 1 ? What is the relationship between family dysfunction and schizophrenia? a. ?Research has substantiated...
QUESTION 1 ? What is the relationship between family dysfunction and schizophrenia? a. ?Research has substantiated a link between family dysfunction and schizophrenia but can't say which causes the other. b. ?Family dysfunction is a major causative factor for schizophrenia. c. ?Research has failed to substantiate a direct causal link between family dysfunction and schizophrenia. d. ?Family dysfunction plays a minor role in developing schizophrenia. 1.00000 points    QUESTION 2 ? Chuck has no life plan; he simply lives from...
Question -Organizational change goes beyond promotions and the threat of layoffs. What ways other than those...
Question -Organizational change goes beyond promotions and the threat of layoffs. What ways other than those discussed in the case would you use to entice people to embrace proposed changes? Provide several suggestions and justify their rationale. CASE STUDY- Blue Cross and Blue Shield, and Others: Understanding the Science behind Change Kevin Sparks has been trying to get his staff to change the way it monitors and supports the data center for the past year, but he hasn’t been getting...
When is a hypothesis considered scientific? a. when it is based on something other than observation...
When is a hypothesis considered scientific? a. when it is based on something other than observation b. when it can be tested and is refutable c. when it relies on anecdotal evidence d. when it relies on mystical explanations e. All hypotheses are considered scientific until experiments determine otherwise. 3. Of the following, which is the earliest step in the scientific process? a. generating a hypothesis b. analyzing data c. conducting an experiment d. drawing a conclusion e. developing a...
The Business Case for Agility “The battle is not always to the strongest, nor the race...
The Business Case for Agility “The battle is not always to the strongest, nor the race to the swiftest, but that’s the way to bet ’em!”  —C. Morgan Cofer In This Chapter This chapter discusses the business case for Agility, presenting six benefits for teams and the enterprise. It also describes a financial model that shows why incremental development works. Takeaways Agility is not just about the team. There are product-management, project-management, and technical issues beyond the team’s control. Lean-Agile provides...
read Seasons of Love chapter:measuring a child's life after suicide. please answer the questions : reflect...
read Seasons of Love chapter:measuring a child's life after suicide. please answer the questions : reflect on what happens to the families when there is a suicide in the family, based on the Seasons of Love chapter...how should people be told? What details are best left unshared? below is the story These theories may have a certain face-validity, but they often neglect environmental or contextual factors that are innate to answering the question of “why” a person might engage in...
What tools could AA leaders have used to increase their awareness of internal and external issues?...
What tools could AA leaders have used to increase their awareness of internal and external issues? ???ALASKA AIRLINES: NAVIGATING CHANGE In the autumn of 2007, Alaska Airlines executives adjourned at the end of a long and stressful day in the midst of a multi-day strategic planning session. Most headed outside to relax, unwind and enjoy a bonfire on the shore of Semiahmoo Spit, outside the meeting venue in Blaine, a seaport town in northwest Washington state. Meanwhile, several members of...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT