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exis [7]
2 years ago
11

True or False: If a cell moves pass the M phase checkpoint this means that the DNA chromosomes are not correctly aligned in the

middle of the cell or attached to the spindle fibers. 
-true
-false​
Biology
1 answer:
vitfil [10]2 years ago
4 0

Answer:

False

Explanation:

Cell cycle checkpoints are points in the cell cycle when the cell can halt the cell cycle in response to errors or when conditions are not optimal for dividing.

The M checkpoint ensures that mitotic spindle is attached to the chromosomes and that they are aligned properly in the middle of the cell.

If the cell halts at the checkpoint, then the chromosomes are not aligned properly and the spindle is not attached.

If the cell passes through the checkpoint, the chromosomes are properly aligned and the spindle is attached ready to proceed with mitosis.

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4. Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If t
lisov135 [29]

Answer:

The correct answer would be:

  • Genotype ratio: 1 (PP) : 2 (Pp) : 1 (pp)
  • Phenotypic ratio: 3 (polka-dot tails) : solid colored tail

The genotype of both parents is Pp (heterozygous).

Thus, both the parent would produce two types of gametes which are P and p.

The cross would result in the production of offspring with three types of genotype PP, Pp, and pp in 1:2:1.

Offspring with PP and Pp will have a polka-dotted tail as it is the dominant trait.

Thus, the phenotype ratio would be 3 (polka-dotted tail) : 1 (solid colored tail).

3 0
3 years ago
Match each biodiversity restoration method to its description.
timofeeve [1]

Match each biodiversity restoration method to its description we have:

  • reforestation: using plants to absorb harmful compounds
  • biological augmentation: using plants to control a native plant population
  • bioremediation:using plants to increase biodiversity and food resources

<h3>What are ecological restoration techniques?</h3>

Some examples of induced ecological restoration methodologies are the conduction of natural regeneration, nucleation techniques, enrichment or diversity planting, among others.

In this case, the ecological restoration techniques are:

  • reforestation: using plants to absorb harmful compounds
  • biological augmentation: using plants to control a native plant population
  • bioremediation: using plants to increase biodiversity and food resources

See more about ecological restoration at brainly.com/question/1331136

#SPJ1

6 0
2 years ago
Evolution of the atmosphere<br> Describe and explain how the earths atmosphere evolved.
svlad2 [7]

Answer:

Answer is on the pic

Explanation:

I hope it's helpful!

5 0
3 years ago
Which organelles are found in both plant and animal cells?
konstantin123 [22]
B. mitochondria and nucleus
8 0
3 years ago
Explain the versatility of carbon atoms. Why is carbon the base element for all life's molecules?
Mashcka [7]

Answer:

Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.

Explanation:

5 0
3 years ago
Read 2 more answers
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