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
ivanzaharov [21]
3 years ago
8

Human development begins with a(n)

Biology
1 answer:
dlinn [17]3 years ago
3 0

Answer:

a zygote, which is created when a male and a female gametes join…

Explanation:

You might be interested in
All you need is in the photo ​
jeka57 [31]

Answer:

primary

Explanation:

Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed.

4 0
3 years ago
The vector, which is often a small, circular piece of dna that can exist outside the bacterial chromosome, is known as what?.
kramer

The vector, which is often a small, circular piece of dna that can exist outside the bacterial chromosome, is known as a plasmid.

Bacteria and certain other microscopic species contain plasmids, which are tiny circular DNA molecules. Physically distinct from chromosomal DNA, plasmids multiply on their own. They normally contain only a few genes, including some linked to antibiotic resistance, and they can spread from one cell to another.

Recombinant DNA techniques are used by scientists to splice the genes they want to research into a plasmid. The inserted gene is duplicated along with the plasmid when it duplicates itself. Molecular cloning, the process of creating DNA molecules and introducing them into a host cell, uses plasmid vectors as the means of delivering recombinant DNA into the host cell.

To know more about plasmids, refer to the following link:

brainly.com/question/7826558

#SPJ4

3 0
1 year ago
In dna replication which strand grows continuosly toward the
Kay [80]
Replication Fork! Is the answer! Hope this helps!
4 0
3 years ago
PLZZZZ HELP MEEE I WILL GIVE BRAINLYEST
choli [55]

What's the question?

I cannot download anything from the internet sorry, so i need the question to be able to answer.

7 0
2 years ago
Read 2 more answers
Bacteria can make their own folic acid, which is required for nucleic acid synthesis, but humans cannot and instead have to inge
lidiya [134]

This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.

Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.

Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.

These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).

Know more about selective toxicity here :

brainly.com/question/13142849

#SPJ4

7 0
1 year ago
Other questions:
  • Which of the following best describes a consequence of using a renewable energy source? Solar power is expensive and requires a
    10·2 answers
  • At which stage is glucose broken into smaller molecules? A. before cellular respiration begins B. during the first stage of cell
    11·2 answers
  • Human pedigrees do not show the clear patterns that mendel found in his peas because
    10·1 answer
  • Protists can be found ??
    10·2 answers
  • What is 6.9 × 107 written in standard form?
    14·1 answer
  • _Which molecule is the enzyme in this experiment?
    8·1 answer
  • 50 points+brainiest<br> HELP QUICK
    12·1 answer
  • Study the dog family picture below and answer the reflection
    10·2 answers
  • The student has written a paper about a deer population that was separated when you canyon develop between members of the group
    8·1 answer
  • In a maternity ward, four babies become accidentally mixed up. The ABO blood types of the four babies are known to be. Baby Jane
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!