1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
iragen [17]
3 years ago
7

Write the name for the mitotic stage that matches each phrase: Nuclear membrane and nucleolus disappear:________________________

_ Spindle is formed:_______________________________________________ Separation of sister chromatids:____________________________________ Daughter cells are usually formed:__________________________________ Rod-shaped chromosomes are first visible:____________________________ Chromosomes line up on equatorial plane:____________________________ New nuclei are formed:___________________________________________ Daughter chromosomes migrate to opposite poles of the cell:_____________
Biology
1 answer:
yawa3891 [41]3 years ago
8 0

Answer:

1. Nuclear membrane and nucleolus disappear: Prometaphase.

2. Spindle is formed: Prophase

3. Separation of sister chromatids: Anaphase

4. Daughter cells are usually formed: Telophase

5. Rod-shaped chromosomes are first visible: Prophase (first visible) Metaphase (completely visible).

6. Chromosomes line up on equatorial plane: Metaphase

7. New nuclei are formed: Telophase

8. Daughter chromosomes migrate to opposite poles of the cell: Anaphase

Explanation:

Mitosis process occurs in the following order:

1. Prophase: Prophase is the start of cellular division. In this step, chromatin is condensed into chromosomes and spindle is formed.

2. Prometaphase: In this step, the nuclear membrane breaks down and sister chromatids start to migrate to the equator of the cell.  

3. Metaphase: Here, chromatids are aligned into the cell's equator and now chromosomes has the rod-shape.

4. Anaphase: Sister chromatids separate, and they migrate toward the daughter cells' poles.

5. Telophase: Here, new nuclear membranes are formed and daughter cells can be seen. Finally, they separate into two new cells.

You might be interested in
HELP ME ASAP!!!!!!!!!!!!!!!!
fredd [130]

28. <u>Answer</u>: All mutations do not affect the organisms due to the following reasons:-

1. The DNA consists of both coding and non coding regions. The coding regions are known as exons and non coding regions are called as introns. The <em>non coding regions </em>do not make up the protein. Thus, if the mutations occur in non coding regions they do not affect the organism.

2. There are some mutations that result in the change of the codon but the new codon formed codes for the same amino as the previous one. This is possible because of the degeneracy of genetic code. For eg, AAA codes for lysine, however if the mutation changes this code to AAU then this also codes for lysine. Such mutations are called as <em>silent</em> mutations.

3. There are some mutations which result in the change in amino acid however the new amino acid formed is similar to the previous one in its properties for e.g leucine and isoleucine. Such mutations are called as <em>neutral</em> mutations and they do not affect the organism


29. <u>Answer</u>: 1. The process of mitosis results in the formation of <em>two diploid cells</em> whereas meiosis results in the formation of <em>4 haploid cells.</em>

2. The process of mitosis takes place to produce copies of the <em>body cells </em>whereas the process of meiosis takes place to produce the <em>gametes</em>.

<u>Explanation</u>:-

  • <u>Mitosis</u> is a process in which a cell undergoes a single round of division to produce two identical copies of itself . It occurs in 4 phases Prophase, metaphase, anaphase and telophase. This process occurs in the body cells.
  • <u>Meiosis</u> is a process in which a cell undergoes two rounds of cell division to produce 4 copies of haploid cells from a single diploid cell. This process takes place for the formation of gametes.

29. <u>Answer</u>:

<em>Pros</em>

1. Genetic engineering helps us to tackle several diseases. There are many diseases which are caused due to genetic mutations. Genetic engineering helps us to rectify these mutations and hence combat such diseases.

2. Genetic engineering helps us to produce new foods which can withstand adverse conditions such as high/low temperatures, low rainfall, are disease and pest resistant etc. This, genetic engineering helps to significantly improve crop production.

<em>Cons</em>

1. Genetic engineering leads to a decrease in genetic diversity.

2. It can lead to a decrease in the nutritional value of food as genetic engineering often causes an accelerated growth of animals and hence, the nutritional valie of poultry foods is compromised.


3 0
3 years ago
Which statement correctly describes a chemical reaction?
o-na [289]

Answer:

C). Bonds between atoms break and reform.

Explanation:

A Chemical reaction is defined as the process in which the substances(two or more) interact and form new substances by rearranging the atom structure of the substances. This process primarily consists of two steps i.e. breaking of chemical bonds that exist between the atoms in the original substances and the formation of new bonds to produce the new substance. Thus, the bonds break and reform. Hence, <u>option C</u> is the correct answer.

4 0
3 years ago
What color are tigers under their fur?
Likurg_2 [28]

Answer:

golden hue

Explanation:

3 0
3 years ago
The first stage involves creating a filtrate in the ____________ . Second, the filtrate flows through the tubules and useful sub
Fed [463]

Answer:

These are the basic steps of urine formation.

Explanation:

The first step comprises creating a filtrate in the glomerulus.

During the second stage, the filtrate flows through the tubules, and useful substances are reabsorbed.

Waste products will then be secreted by the tubules.

Whereas, the final stage is the conservation of water that occurs in the renal tubule.

There are four major stages in the formation of urine.

3 0
3 years ago
How can you distinguish between animal and plant cells under the microscope?
IRISSAK [1]

Answer:

the shape

Explanation:

If it’s round it would be animal and if it’s square-like it would be plant cell. Hope this helps!

4 0
1 year ago
Other questions:
  • if a genetic error occurred, resulting in each liver cell in a person having only 1,000 insulin receptors, what specific effect
    13·2 answers
  • Removal of a client's peripheral intravenous catheter resulted in brief bleeding and the loss of a small amount of blood. Which
    14·1 answer
  • Enrique examines a plant species to determine whether it could be a pioneer species. Which questions should he ask about the pla
    14·2 answers
  • In an experiment, a researcher counts the number of oxygen bubbles produced by water plants placed under different colors of lig
    11·1 answer
  • 1) The genetic material is duplicated
    13·2 answers
  • PLZ HELP Which number in the hydrologic cycle diagram represents the process of water vapor becoming a liquid? PLZ FAST MY UNIT
    8·2 answers
  • In what ways are producers and consumers alike?
    11·2 answers
  • Arrange the followings so that they accurately display the anatomical terms from bottom to top in order of the deepest to most s
    9·1 answer
  • Scientists have determined that the codes for amino acids are?
    7·1 answer
  • Why do parasitic flatworms travel into the eyestalks of their snail hosts? *
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!