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
Licemer1 [7]
3 years ago
7

Aldosterone ________.

Biology
1 answer:
egoroff_w [7]3 years ago
6 0
A. presence increases potassium concentration in the blood
You might be interested in
the variety of organisms at all levels in an ecosystem is __________. genetic diversity conservation biomes biodiversity
kaheart [24]
Biodiversity is the correct answer
6 0
2 years ago
Two genes determining a trait In primroses, the dominant allele of gene K is necessary to synthesize blue flower pigment. Blue p
viktelen [127]

Answer:

The ratio of blue to white offspring in the progeny is 4 blue : 12 white.

Explanation:

<u>Available data:</u>

  • The dominant allele K is necessary to synthesize blue flower pigment
  • K is inhibited by the dominant allele D
  • Plants with the genotype K- D- will not produce pigment (and their flowers will be white)

Cross: testcross for (Kk Dd) plants

Parental)   KkDd     x     kkdd

Gametes) KD   kD   Kd   kd      

                kd   kd   kd   kd

Punnet square)        KD        Kd       kD       kd

                      kd     KkDd   Kkdd   kkDd   kkdd

                      kd     KkDd  Kkdd   kkDd   kkdd

                      kd     KkDd   Kkdd   kkDd   kkdd

                      kd     KkDd   Kkdd   kkDd   kkdd

  • Whenever D is present, it inhibits the expression of the K gene, so every plant with the dominant D allele will be white. This plants´ genotype is kkD- or K-D-.
  • Whenever D is absent and K is present, every plant with genotype K-dd will be blue.
  • The recessive form for K and D genes will express white-flowered plants, with genotype ddkk

F1) Progeny genotype: 4/16 KkDd, white-flowered plants

                                      4/16 Kkdd, blue-flowered plants

                                      4/16 kkDd, white-flowered plants

                                      4/16 kkdd, white-flowered plants

     The ratio of blue to white offspring in the progeny is 4 blue : 12 white.

     Blue-flowered plants: 4 Kkdd

     White-flowered plants: 4 KkDd + 4 kkDd + 4 kkdd

8 0
3 years ago
I bored who want to talk ? yeasssssssssssssssssss
never [62]

Answer:

Sure :D Im bored too!

7 0
3 years ago
Read 2 more answers
18. RNAi is a technique that silences genes by targeting them and degrading their mRNA. How can this technique be used in scient
MrRissso [65]

Answer:

B

Explanation:

RNAi is a cellular mechanism for post-transcriptional gene silencing. After transcription of a gene into mRNA, small interfering RNA (siRNA) and microRNA (miRNA) can target the mRNA to form dsRNA. This mRNA then becomes a target of ribonucleases such as the Dicer that break it apart. These mRNA, therefore, do not reach the cytoplasm for translation by ribosomes. This mechanism is hence harnessed and manipulated by scientists to study genes by silencing them.

6 0
3 years ago
Read 2 more answers
You notice your friend's MP3 player is turned up so loud you can make out the words to each song-even though she is wearing
Rufina [12.5K]

Answer:

B

Explanation:

4 0
3 years ago
Other questions:
  • Match the food item to its nutrient group
    6·1 answer
  • Mosses that reproduce with gametes are gametophytesseed-bearingvascular, and those that reproduce with spores are seedlesssporop
    14·2 answers
  • Which type of light is least useful for photosynthesis in terrestrial plants?
    7·1 answer
  • The diagrams represent some of the systems that make up the body. A similarity between these systems is that they all
    14·2 answers
  • Autoimmunities are relatively uncommon. What usually happens to autoimmune antibody-producing clones during development
    5·1 answer
  • Although a villus, a capillary, and an alveolus are part of different organ systems, they have structural similarities that resu
    5·1 answer
  • Answer ASAP please
    13·1 answer
  • What is believed to be the most significant result of the evolution of the amniotic egg?
    7·1 answer
  • I need the answer for number 4
    10·2 answers
  • Question 2 of 10
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!