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
Volgvan
2 years ago
14

I really need help with this

Biology
1 answer:
Radda [10]2 years ago
4 0

Answer:It should be D

Explanation:

You might be interested in
2 Points
Lubov Fominskaja [6]

Answer:

A

Explanation:

Bacteria use binary fission but viruses don't

5 0
3 years ago
Which of the following best completes the phrase? For every action there is _____. *
Harlamova29_29 [7]
Can you elaborate it’s confusing I think it’s consequence tho
5 0
2 years ago
Classify the following characteristics depending on if they describe events occurring in mitosis, meiosis I, or meiosis II.
Temka [501]

Answer:

Mitosis events are:

Results in 2 genetically identical

diploid nuclei

A diploid number of sister

chromatids align at the spindle

equator during metaphase

Meiosis I events are:

Results in 2 genetically diverse

haploid nuclei

Homologous chromosomes align

at the spindle equator during

metaphase

Homologous chromosomes pair

up during prophase

Crossing-over occurs during

synapsis

Meiosis II events are:

Results in 4 genetically diverse

haploid nuclei

A haploid number of homologous

chromosomes align at the spindle

equator during metaphase

Explanation:

Mitosis is a type of cell division which produces two daughter cells that are genetically identical to the parent cell. In mitosis, the chromosome number of the parent cell is maintained in the daughter cells i.e. a diploid cell (2n) will undergo mitosis to produce two diploid (2n) daughter cells. During mitotic division, sister chromatids (replicated chromosomes) are involved in the division stages. i.e. diploid sister chromatids align at the equator of the cell during Metaphase and also sister chromatids are separated or pulled apart to opposite poles during Anaphase.

Meiosis, on the other hand, is a kind of cell division that results in daughter cells with a reduced number of chromosome (by half). Since the chromosome number is reduced, meiosis occurs in a two step division process viz: Meiosis I and II.

Meiosis I produces two genetically different daughter cells. The daughter cells have a reduced number of chromosomes i.e. from diploid (2n) to haploid (n). Meiosis I involves homologous chromosomes (similar but non-identical chromosomes received from each parent) which pair up to form a TETRAD structure in the Prophase stage. This structure allows for an exchange of chromosomal segment between non-sister chromatids of homologous chromosomes, a process called CROSSING-OVER. Crossing-over is what makes the daughter cells genetically different from the parent cell. Homologous chromosomes also aligns at the equator of the cell during Metaphase and later separates during Anaphase.

Meiosis II divides the two daughter cells produced in meiosis I into four genetically different daughter cells. Since the chromosome number has been reduced from diploid (2n) to haploid (n) in meiosis I when homologous chromosomes separate, haploid sister chromatids are involved in the stages of meiosis II i.e. haploid sister chromatids align at the equator of the cell during Metaphase and eventually becomes pulled apart during Anaphase.

5 0
2 years ago
When two substances create a solution, what happens to its mass?
marissa [1.9K]
The mass is increased as two things are added together so the two masses of the two substances are added together.
7 0
2 years ago
Where in the cell cycle does the type of mutation in chromosomal translocation occur?
Makovka662 [10]

During metaphase 1 of meiosis of the cell cycle chromosomal translocation occur.

Explanation:

Chromosomal translocation is abnormal phenomenon when a fragment of chromosomes detaches and gets stick to the non-homologous chromosome in an individual. These are causative of aneuploid, cancer and infertility in organism.

In metaphase 1 of meiosis the chromosomes gets aligned on the metaphase plate. This leads to surety of equal number of chromosome in the cell.

Chromosomal translocation are seen in metaphase 1 because it is the phase of rearrangement of chromosomes where fragments easily gets attach to the other chromosome.

3 0
3 years ago
Other questions:
  • What distribution pattern has no order as to how it is distributed through an ecosystem
    15·1 answer
  • Which are characteristics of medusae?
    11·1 answer
  • Birds and earthworms have a _____ that stores and softens food.
    10·2 answers
  • Katherine wants to study the reproductive functions of the rhinoceros. However, she wants to conduct this study without capturin
    15·1 answer
  • Doesn't have a science subject but okay.... Whoever helps will get brainiest
    5·1 answer
  • First answer will be marked brainliest​
    15·2 answers
  • What is the definition of inherited trait
    7·2 answers
  • Scientists in different parts of the world study the path and speed of a newly discovered comet. If the results of the studies a
    14·2 answers
  • Is rabbits a herbivore,carnivore,omnivore??
    5·2 answers
  • Please HELP!!!!!!!!!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!