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
In-s [12.5K]
2 years ago
5

Two bacterial strains have the same genes for metabolizing carbohydrates, but one is wild-type for a regulatory inducer while th

e other does not produce the inducer. Which of the following statements is CORRECT with regard to the metabolism of the bacteria?
a. The two bacterial strains have the same phenotype.
b. The two bacterial strains have different phenotypes.
c. The genotypes and phenotypes of the two bacterial strains are the same.
d. The two bacterial strains have the same phenotype but have different genotypes.
e. The answer cannot be determined from the information provided.
Biology
1 answer:
klemol [59]2 years ago
6 0

Answer:

b. The two bacterial strains have different phenotypes.

Explanation:

In genetics, the trait that is expressed is often referred to as the dominant trait and it can also be expresssed phenotypically.

Since one of the bacteria produces the inducer, it therefore means that bacteria has the dominant strain for the regulatory inducer while the other bacteria might have the strain but since it is not expressed phenotypically, it is as a result not dominant.

Phenotype refers to the physical appearance of an organism as a result of the interaction of its genes with the environment. Examples of phenotypic expresssions are hair colour, skin colour, height, etc.

You might be interested in
Explain how bacteria are both helpful and harmful to our bodies.
nexus9112 [7]

This is the exact answer:

Bacteria are helpful because they produce oxygen, which our bodies need to breathe, and they help us to digest the food we eat. Bacteria are also helpful because they are used in medicine to help us overcome disease. Bacteria are harmful because they can cause tooth decay and illnesses that can be either common or quite serious.

7 0
3 years ago
Read 2 more answers
List ten factors which can be involved in regulating bacterial gene expression (includes specificity and level of expression). "
nirvana33 [79]

Answer:

At least 6 were provided:

1. Transcription.

2. Chromatin domains.

3. mRNA degradation.

4. RNA transport.

5. Translation.

6. Post-transcriptional modification.

Explanation:

Chromatin domains.

Changes to the epigenome can result in changes to the structure of chromatin and changes to the function of the genome.

Transcription.

During transcription, a DNA sequence is read by an RNA polymerase, which produces a complementary, antiparallel RNA strand called a primary transcript.

Post-transcriptional modification.

is a set of biological processes common to most eukaryotic cells by which an RNA primary transcript is chemically altered following transcription from a gene to produce a mature, functional RNA molecule that can then leave the nucleus and perform any of a variety of different functions in the cell.

RNA transport.

mRNA is created during the process of transcription, where the enzyme RNA polymerase converts genes into primary transcript mRNA (also known as pre-mRNA). This pre-mRNA usually still contains introns, regions that will not go on to code for the final amino acid sequence.

Translation.

In translation, messenger RNA (mRNA) is decoded in the ribosome decoding center to produce a specific amino acid chain, or polypeptide.

mRNA degradation.

Different mRNAs within the same cell have distinct lifetimes (stabilities). In bacterial cells, individual mRNAs can survive from seconds to more than an hour. However, the lifetime averages between 1 and 3 minutes, making bacterial mRNA much less stable than eukaryotic mRNA.

3 0
2 years ago
Total nucleic acids are extracted from a culture of yeast cells and are then mixed with resin beads to which the polynucleotide
mr Goodwill [35]

The question is incomplete as it does not have the options which are:

(a)DNA (b)tRNA (c)rRNA (d)mRNA

Answer:

Option-mRNA

Explanation:

The mRNA is synthesized from the DNA and which is also a type of nucleic acid. When the nucleic acid is extracted from the yeasts and then mixed with the resin beads to which the polynucleotide with thymine base oar is attached.

The mRNA will bind to the resin bead as the mRNA after synthesis undergoes modification and attaches poly A tail to the end of the mRNA at 3' end.

This poly-A tail has adenine which easily binds to the thymine and thus mRNA easily attaches to the resin bead.

Thus, mRNA is correct.

5 0
2 years ago
PLSSSS HELP IF YOU TURLY KNOW THISS
s2008m [1.1K]

All parts of nonvascular plants must be near water because they have: B. tiny roots.

<h3>What is photosynthesis?</h3>

Photosynthesis can be defined as a biological and chemical process through which living organisms such as green plants (autotrophs), transform light energy (sunlight) into stored chemical energy.

<h3>What is a nonvascular plant?</h3>

A nonvascular plant can be defined as a species of low-growing, non-flowering plant that lacks specialized conducting channels, deep roots or vascular tissues (xylem and phloem) for the transportation of nutrients and absorption of water.

Generally, nonvascular plants usually possess tiny roots and the the dominant stage of their life cycle is the photosynthetic gametophyte. Some examples of a nonvascular plant include the following:

  • Moss
  • Liverwort
  • Bryophyte

In conclusion, we can infer and logically deduce that all parts of nonvascular plants must be near water because they have tiny roots.

Read more on nonvascular plants here: brainly.com/question/21482234

#SPJ1

Complete Question:

All parts of nonvascular plants must be near water because they have____

A) deep roots

B) tiny roots

C) large branches

D) Big leaves

8 0
1 year ago
PLZ HELP!!!! I'LL GIVE BRAILLIEST!!!<br><br><br> How does a tobacco mosaic virus reproduce???
Dominik [7]

Tobacco mosaic virus (TMV) is a simple rod-shaped helical virus that contains single stranded RNA situated at its middle and is surrounded by a protein coat called capsid. After tobacco mosaic virus enters its infected host cells through mechanical inoculation, it removes its capsid to release its single stranded viral nucleic acid which is then transported into the nucleolus. The single stranded viral RNA actuates the production of specific enzymes (RNA polymerases) and it also produces another RNA strand (replicative RNA). The new viral-RNAs are transported from the nucleus into the cytoplasm and functions as messenger-RNAs (mRNAs). Each mRNA, ribosomes, and t-RNA, of the infected host cell all controls the production of protein subunits (capsomeres). After the production of the preferred capsomeres, the new viral-RNAs arrange the capsomeres around it which lead to the production of a complete virus particle (virion). The viruses then migrate from one cell to another. Hence, creating organized infection.

3 0
2 years ago
Other questions:
  • Plants lose water through openings in their leaves by a process called _____.
    13·1 answer
  • Given what you know/have learned, how might humans and mice differ?
    9·1 answer
  • Responding to the environment by maintaining a stable internal environment despite changing external conditions is
    11·1 answer
  • In Part 1, how many different combinations of genes for hair body and hair color are possible? List them.
    10·2 answers
  • Sponges have no nerve tissue or sense organs.explain why this means that sponges have no cephalisation.
    6·1 answer
  • Use the drop-down menus to choose the correct global wind belt for each statement. This area is located around the equator and i
    10·2 answers
  • Please help fast. How does Gravitropism help a plant?
    12·2 answers
  • Describe 3 ways a mutation can occur?
    15·1 answer
  • Select the choice that describes neurons with the fastest conduction velocity for action potentials. view available hint(s) sele
    9·1 answer
  • This is a simple diagram of a food chain:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!