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
nasty-shy [4]
3 years ago
15

Which descriptions apply to prokaryotic cells? Check all that apply.

Biology
2 answers:
tester [92]3 years ago
6 0

Answer:

1. Are usually single-celled.

2. Do not contain membrane-bound organelles

3. Have DNA located in cytoplasm

Explanation:

Prokaryotic cells are single-celled organisms which have the following characters:

1. They lack a true nucleus and hence, they do not have their genetic material enclosed in a nuclear membrane-bound nucleus, rather it is present in the cytoplasm.

2. They lack all the membrane-bound organelles such as mitochondria, endoplasmic reticulum, etc.

3. They are usually. very small in size and hence are microscopic.

Examples include all the bacterias.

valentinak56 [21]3 years ago
6 0

Answer:

The correct answer will be options-

1. are usually single-celled

2. do not contain membrane-bound organelles

3. have DNA located in cytoplasm

Explanation:

Prokaryotes are the organisms which were formed during the primordial time on Earth and are therefore considered the primitive form of life.

Since they are primitive forms like bacteria, therefore, they lacked the membrane-bound organelles, their genetic material is present freely floating in the cytoplasm due to lack of nucleus.

The only primitive form of life known to us are single-celled organism called bacteria.

Thus, the selected options are the correct answer.

 

You might be interested in
Explain the importance of biodiversity to an ecosystem. in your answer, be sure to:
MArishka [77]
Biodiversity supports biological system efficiency where every specie, regardless of how little, all have a vital part to play. For instance, A bigger number of plant species implies a more prominent assortment of products. More noteworthy species assorted variety guarantees common maintainability for all living things.
7 0
3 years ago
In fruit flies, a specific gene mutation causes the wings to become malformed. These wings are called vestigial because they do
larisa [96]
Answer: 25% are homozygous with the dominant gene (VV), 25% are homozygous with the recessive gene (vv), and 50% are heterozygous (Vv). Only the flies with vv will display the trait.
6 0
3 years ago
An in nerve cells?
Scilla [17]
The correct answer is: C-MITOCHONDRIA
6 0
3 years ago
You are a scientist who discovers three new species of beetles in the jungles of South America. Describe, in detail, how a prote
Travka [436]
<span>Sunset, this is really similar to the question about molecular clocks you asked. The more closely related the three species are, the more similar the homologous proteins will be in each of the species.
 

Defining 'sequence similarity' is a little bit nuanced. It can refer either to the genetic code or the amino acid code. Because the genetic code is degenerate multiple codons code for the same amino acid - mutations in the gene don't result in mutations in the proteins when the mutated codon codes for the same amino acid as the unmutated codon.
 
Similarly, you can sort of think of some amino acids as being redundant. In some cases, replacement of one amino acid with another doesn't result in all that much change to the protein's structure or function. The result is, as species diverge and mutations build up, they build up preferentially in certain domains of the protein and more frequently involve replacement of one amino acid with one which is pretty much similar to it.</span>
5 0
3 years ago
Read 2 more answers
7. You may construct a pedigree to help answer the question. In autosomal dominant inheritance, a homozygous
schepotkina [342]

a. that are all affected

Since the father is homozygous dominant (AA), and he is affected, that means that the disorder (or whatever it is), is autosomal dominant (plus it directly tells you that). That means it is not carried on the sex chromosomes. Since every child he has will inherit one of his alleles, they will all be affected by having at least the one.

3 0
3 years ago
Other questions:
  • Which type of rock forms through weathering, erosion and deposition?
    8·1 answer
  • If you will investigate the factor affecting the rusting of iron,what materials/equipment do you need?
    12·1 answer
  • Which of the following properties is considered the "true color" of a mineral?
    5·1 answer
  • Which region has the highest elevation? Help please
    14·2 answers
  • What structure stores and concentrates bile to aid in the digestion of fats?
    8·1 answer
  • Many types of living cells, including human skin cells, can be damaged or killed if exposed to ultraviolet light from the Sun. H
    15·1 answer
  • Darwin hypothesized that a new species could appear through small changes in an ancestral species. Which observation that he mad
    12·1 answer
  • Many land plants store energy in starch. When energy is needed, the starch molecules can be broken down quickly. Starch is which
    5·1 answer
  • Proteins are the main energy source for life on Earth. True or False.
    14·2 answers
  • Use the scenario to answer the following question. A forest ecosystem is home to mountain lions, coyotes, bobcats and deer. The
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!