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Anna [14]
3 years ago
12

What is the principle of common descent?

Biology
2 answers:
Molodets [167]3 years ago
6 0

Common descent describes how, in evolutionary biology, a group of organisms share a most recent common ancestor. There is "massive" evidence of common descent of all life on Earth from the last universal common ancestor

Degger [83]3 years ago
5 0

common descent means the evolutionary in biology and how they have something linked with their common ancestors.

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Each orientation of chromosomes produces gametes with the same genetic information from each parent.
oksano4ka [1.4K]

Answer: a) true

Explanation:

The goal of mitosis is to produce daughter cells that are genetically identical to the mother cell, without a single extra or missing chromosome. Meiosis, on the other hand, is only used for one purpose in the human body: the production of gametes or sex cells, i.e. sperm and eggs. The question is oriented to mitosis, <u>in which prior to this cell division, the cell duplicates its DNA</u> so that each daughter cell then inherits the genetic material. That is, the cell originally possesses 23 chromosomes, they duplicate to a total of 46 so that then each daughter cell receives 23.

The metaphase is the second phase of mitosis and meiosis that occurs after prophase where the envelope is lost and microtubules of the achromatic spindle (also called meiotic or mitotic) appear.

During metaphase, the chromosomes align themselves in the middle of the cell and this balanced midline spindle alignment is due to the equal and opposing forces generated by the kinetochore brothers.

Then during metaphase, the chromosomes will line up in the center of the cell to be separated and go each to a different daughter cell. But the moment they're found there, each orientation of chromosomes produces gametes with the same genetic information from each parent. <u>Because because there have been no changes or mutations in the chromosomes, they have duplicated and have the same genetic information.</u>

6 0
3 years ago
Mycoplasmas differ from other bacteria in that they Group of answer choices Lack a cell wall. Are acid-fast. Are motile. Are gra
ser-zykov [4K]

Mycoplasmas differ from other bacteria in that they Lack a cell wall.

Mycoplasmas are different from bacteria as it can cause a wide range of infections and diseases. Mycoplasmas are phenotypically distinguished from other bacteria by their small size and complete absence of a cell wall. Lack of cell wall can be used to separate the mycoplasms from bacteria. It is a genus of bacteria that, like other members of the class Mollicutes, lack a cell wall around their cell membranes. Peptidoglycan is absent. This property makes them naturally resistant to antibiotics that target cell wall synthesis. They can be parasitic or saprotrophic

Learn more about Mycoplasmas on:

brainly.com/question/14599784

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4 0
2 years ago
RUE or FALSE: Red hair and freckles is a helpful (good) mutation. HELP PLEASE
Marina CMI [18]
False, people with red hair and freckles don’t have any advantages over people who don’t have them
7 0
3 years ago
In what bodies does chlorophyll exist in plants?
AnnyKZ [126]

Answer:

Stems

Explanation:

6 0
3 years ago
Which reaction is an example of an endothermic reaction?​
Charra [1.4K]

Answer:

melting from ice cube to water

Explanation:

this is because the object gains heat and melting occurs in the object

6 0
3 years ago
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