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
neonofarm [45]
2 years ago
8

What are genes, DNA, chromosomes?

Biology
1 answer:
Leto [7]2 years ago
6 0
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

Hope it’s right
Best luck with your studying
You might be interested in
What are all of the cell types that have DNA that is bound in a nuclear membrane.
Crank
I really dont know the answer but I need something so Iam typing this so yea lol
6 0
3 years ago
Awarding BRAINLIEST answer!! Please help asap!!
S_A_V [24]
One consequence of the overpopulation of deer would be a reduced diversity. Deer tend to eat only some types of plants, so those plants are removed, and other types of plants stay. Hope this helped! Brainliest is always appreciated.
6 0
3 years ago
Read 2 more answers
The lactose (lac) operon in E. coli is an example of a repressed gene when lactose is not available in a cell. In 3-5 sentences
irakobra [83]

Answer:

Please find the detailed explanation of this statement below

Explanation:

Firstly, a repressed gene is a gene whose expression has been inhibited or repressed. The lac operon in E.coli bacteria is a regulatory unit containing structural genes, a single promoter and operator regions. The promoter is the region where the transcription enzyme (RNA polymerase) binds to in order to transcribe the genes in the lac operon. The structural genes in the lac operon can only be expressed in the presence of lactose sugar.

However, in the absence of lactose, LAC REPRESSOR, which is a transcription factor (protein), prevents the binding of RNA polymerase to the PROMOTER region by binding to the OPERATOR region of the lac operon. This inhibits the expression of the lactose genes in the operon.

Note that, the structural genes in the lac operon (lacZ, lacY, lacA) code for proteins that help break down lactose sugar for energy in the E.coli bacteria. Therefore, a bacteria cell with a repressed lac operon will be unable to degrade lactose sugar.

4 0
3 years ago
How does the name porifera relate to the structure of a sponge
WITCHER [35]

Explanation:

the name porifera means pore bearer in latin. a sponges body is covered by a skin, one cell thick. this skin has lots of small pores ad a few large openings. the small openings are the entrances to a complex system of channels. these collar cells pump water through the entire sponge and filter out food for the sponge cell to eat

6 0
3 years ago
HELP ASAP!!!! All life on earth has descended from a common ancestor this theory was accepted when
kap26 [50]

Answer:

A. A majority of scientists agreed with it

Explanation:

The famous theory called the theory of common descent, states that all the living organisms of the earth have arisen from a common ancestor. This notion was first proposed by a French mathematician,Louis Maupertuis duirng 1740s who was of the view that all organisms had a single ancestor and evolutionary process with the passage of time resulted in the specie diversification.

After that, in 1790s another philosopher Immanuel Kant, suggested that all organisms seem to have a common ancestor. In the same period of 1790s, another scientist , Erasmus Darwin who was the grandfather of Charles Darwin also suggested that all the organisms might have a single ancestor who went through the process of evolution to bring all the majesty into life.

Charles Darwin was the first scientist who worked on this notion for alot of time and proposed the theory of common descent,in his book, On the Origin of Species.

After it, many scientists got agree with this theory such as,  Vernon Kellogg in 1907 and T. Ryan Gregory in 2008 and many others explain that no reliable observations exists which contradicts the theory of common descent.

Therefore, option A is the best option.

Hope it helps!

4 0
3 years ago
Other questions:
  • A proposed bill that would force producers of alcoholic beverages to place additional medical warning labels on their bottles wo
    9·1 answer
  • Can someone please help me i would really appreciate it !
    10·2 answers
  • What is the best explanation for the microvilli on the apical surface of the proximal convoluted tubule (pct)?
    9·1 answer
  • Which of these help in the asexual reproduction of black bread mold
    5·1 answer
  • A student argues that being separated geographically is the only way for speciation to occur. Why is he wrong?
    9·2 answers
  • The light-dependent reactions include an electron transport chain system that works in a very
    11·1 answer
  • Lipids are soluble in solvents called ___
    10·1 answer
  • What will be the results in the F2 generation after a monohybrid cross?
    7·1 answer
  • 7,000,000 kilocalories are available at the producer level. The secondary consumers will
    12·1 answer
  • PLEASE HELP, I NEED THIS TO PASS xx,
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!