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alexdok [17]
4 years ago
11

Nicholas has been biting his nails since he was a kid. He wants to break the habit so he puts bitter-tasting nail polish on his

left hand and leaves his right hand without polish. After 3 days he notices his nails on his left hand have grown but he continued to bite his right-hand nails.
A. Independent Variable=
B. Dependent Variable=
C. Control=
Biology
2 answers:
Aleksandr-060686 [28]4 years ago
6 0

Answer:

Independent: Putting the nail polish

Dependent: nail growth

Control: right hand, without polish

9966 [12]4 years ago
5 0

Answer:

C

Explanation:

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antiseptic1488 [7]

New media, smaller equipment, and instant sharing, are all part of the new environmentalist tools for visual documentation.

<h3>What is Visual documentation?</h3>

This is defined as the process in which knowledge or information is managed and organized in a visual manner.

This however employs the use of equipment such as projectors and internet sharing devices to ensure that the information is disseminated to a large number of people.

Read more about Documentation here brainly.com/question/1218796

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5 0
2 years ago
Fitz loves growing flowers for his mom and friends. Her favorite flowers, roses, are red roses(RR), blue roses (R’R’), and purpl
natali 33 [55]

Answer:

They would Mix?

Explanation:

This is a really good question if they don't mix then i guess they'd have 50% chance of being blue and 50% chance of it being purple

       R         R       P  U  R  P  L  E

     _________

R  | RR    |  RR   |

     _________

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5 0
3 years ago
Please help its due in a hour!!!!!
garri49 [273]

Answer:

1. The difference between the normal hemoglobin protein DNA sequence and the sickle cell hemoglobin DNA sequence is a base to base shift, in this case adenine (GAG) to thymine (GTG).

2. The difference affects the amino acid sequence of the protein by replacing glutamic acid (Glu) with valine (Val).

Explanation:

In sickle cell anemia, a change in the DNA nucleotide sequence is observed, where adenine is substituted by thymine, whose expression is the change in the amino acid sequence of globine β, incorporating valine instead of glutamic acid. This represents a molecular mutation - point mutation - by subtitution, which corresponds to missense mutation.

<u>Normal hemoglobin protein in a RBC</u>

DNA                 CTG ACT CCT GAG GAG AAG TCT

Amino acids     Leu  Thr   Pro   Glu   Glu   Lys   Ser

<u>Sickle cell hemoglobin protein in a RBC</u>

DNA                 CTG ACT CCT <em>GTG</em> GAG AAG TCT

Amino acids     Leu  Thr   Pro   <em>Val</em>   Glu   Lys   Ser

When GAG is transcribed to mRNA, the CUC codon is obtained, which codes for glutamic acid. Thymine substitution causes the DNA sequence to change to GTG, which is transcribed as CAC, the codon that encodes the amino acid valine. The <u>change from glutamic acid to valine in β-globin causes an altered hemoglobin, giving the abnormal erythrocytes observed in sickle cell disease</u>.

6 0
3 years ago
how the cells in your body are different from one another. Look at the different types of cells above, and make a list of how th
kotegsom [21]

Answer: Different cells have different jobs to do. Each cell has a size and shape that is suited to its job. Cells that do the same job combine together to form body tissue, such as muscle, skin, or bone tissue. Groups of different types of cells make up the organs in your body, such as your heart, liver, or lungs.Differentiation means that one cell performs a different function than another cell, depending on where it is in your body. ... All the cells contain the same genetic material and all of them are from one original cell that started as a fertilized egg, but they look different and act different from one another. Under a microscope, fat cells look like bulbous little spheres. Like other cells in the body, each has a cell membrane and a nucleus, but their bulk is made up of droplets of stored triglycerides, each of which consists of three fatty-acid molecules attached to a single glycerol molecule. Skin cells are specialized to be quickly shed and replaced, and do not have much mitochondria (which helps produce energy). Muscle cells, conversely, have lots of mitochondria because they need energy to produce movement. Unlike many other cells, red blood cells have no nucleus and can easily change shape, helping them fit through the various blood vessels in your body. Unlike most other eukaryotic cells, mature red blood cells don't have nuclei. When they enter the bloodstream for the first time, they eject their nuclei and organelles, so they can carry more hemoglobin, and thus, more oxygen. Each red blood cell has a life span of around 100–120 days. Skin cells are specialized to be quickly shed and replaced, and do not have much mitochondria (which helps produce energy). Muscle cells, conversely, have lots of mitochondria because they need energy to produce movement. brainliest??

Explanation:

4 0
3 years ago
1. What codes for a protein?
Harman [31]
1) mRNA
2) amino acids
3) transcription and translation
4) mRNA is made
5) messenger
6) to a ribosome in the cytoplasm
7) making amino acids
8) ribosomal
9) transfer
10) tRNA anticodon match up with codons on mRNA strand
11) codon
12) peptide bond

Hope that helps! :)
5 0
3 years ago
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