Cell Biology

●is it true or false that the rna splicing doesnt have to occur flawlessly leaving nicks of ...

●is it true or false that the rna splicing doesnt have to occur flawlessly leaving nicks of ...

is it true or false that the process of splicing in RNA doesnt have to occur flawlessly leaving nicks of introns in mature mRNA ?

I wrote again the question cause a small piece was missing. Can anyone help me?

Cj99   71   3 Replies

bio_man

“Mad cow disease” is most likely due to a. an alteration in protein conformation

“Mad cow disease” is most likely due to a. an alteration in protein conformation

“Mad cow disease” is most likely due to
a. an alteration in protein conformation.
b. a change in the amino acid sequences of a protein.
c. a missing protein.
d. the number of triplet repeats of a protein.
e. Both a and b

arealhero   221   3 Replies

milestone23

β-oxidation (Multiple Choice)

β-oxidation (Multiple Choice)

β-oxidation 
A) is the second step in the oxidation of glucose.
B) is a process used to oxidize fatty acids. 
C) occurs in the cytoplasm.
D) is a process used to digest some polysaccharides.
E) both choices B a

Astatine   257   3 Replies

virion

β-lactamase production is an example of which of the following types of resistance?

β-lactamase production is an example of which of the following types of resistance?

β-lactamase production is an example of which of the following types of resistance?
A) alteration of the target of the drug
B) inactivation of the drug
C) change in the permeability of the drug
D) overproduction of an enzyme in a

cuchillo   439   3 Replies

archie90

α factor is produced by ______ cells and binds to receptors on the surface of ________ cells.

α factor is produced by ______ cells and binds to receptors on the surface of ________ cells.

α factor is produced by ______ cells and binds to receptors on the surface of ________ cells.
a. a, a
b. α, α
c . a, α
d. α, a

With806   56   1 Reply

MMAfan14

¿Me puedes AYUDAR con la TRADUCCIÓN EN ESPAÑOL de estas frases?

¿Me puedes AYUDAR con la TRADUCCIÓN EN ESPAÑOL de estas frases?

Necesito una traducción buena de estas frases en español y luego responder en inglés. Lo estoy haciendo y bueno leer el final y ya sabes si me respondes cada pregunta en inglés correctamente a lo que dice cada una de ellas te llevas el lote dentro de

riyaghuman   274   3 Replies

Mick

¿cuáles son los efectos del ácido abscísico (ABA) en el mecanismo de cierre y apertura ...

¿cuáles son los efectos del ácido abscísico (ABA) en el mecanismo de cierre y apertura ...

Explique los efectos del ácido abscísico (ABA) en el mecanismo de cierre y apertura estomático.

LISETH CATHERINE VANEGAS   50   1 Reply

bio_man

 Fc‐receptors tend to have short cytoplasmatic tails. This has consequences for signaling in cells expressing  ...

 Fc‐receptors tend to have short cytoplasmatic tails. This has consequences for signaling in cells expressing  ...

Fc‐receptors tend to have short cytoplasmatic tails. This has consequences for signaling in cells expressing 
the Fc receptor. How? (1p) 
A.

SkövdeUni   185   3 Replies

bio_man

__________ react to antigens on the surface of modified body cells.

__________ react to antigens on the surface of modified body cells.

__________ react to antigens on the surface of modified body cells.
 a. Prostaglandins
 b. T cells
 c. Natural killer cells
 d. Plasma cells

aprdavis90   58   1 Reply

qdolet

__________ occurs when a microorganism modifies a given compound to a structurally related compound. ...

__________ occurs when a microorganism modifies a given compound to a structurally related compound. ...

__________ occurs when a microorganism modifies a given compound to a structurally related compound.
 a. Dehalogenation
 b. Biodegradation
 c. Bioremediation
 d. Bioconversion

akifuji   82   1 Reply

Blackfireluv

__________ may inhibit immune reaction by decreasing B- and T-cell activity and B- and T-cell ...

__________ may inhibit immune reaction by decreasing B- and T-cell activity and B- and T-cell ...

__________ may inhibit immune reaction by decreasing B- and T-cell activity and B- and T-cell division.
 a. Plasma cells
 b. Helper T cells
 c. Macrophages
 d. Suppressor T cells

gumball   38   1 Reply

san205

__________ may have pili. (Multiple Choice)

__________ may have pili. (Multiple Choice)

__________ may have pili.
A) Eukaryotes
B) Archaea
C) Bacteria
D) Prokaryotes
E) Eukaryotes and bacteria

cuchillo   625   3 Replies

archie90

__________ may have flagella. (Multiple Choice)

__________ may have flagella. (Multiple Choice)

__________ may have flagella.
A) Archaea
B) Bacteria
C) Eukaryotes
D) Prokaryotes
E) Archaea, bacteria, and eukaryotes

cuchillo   348   3 Replies

archie90

__________ may be achieved using chlorine dioxide.

__________ may be achieved using chlorine dioxide.

__________ may be achieved using chlorine dioxide.
A) Disinfection
B) Sterilization
C) Degerming
D) Antisepsis
E) Both antisepsis and degerming

cuchillo   723   3 Replies

archie90

__________ is the stage of mitosis in which chromatids move toward opposite poles.

__________ is the stage of mitosis in which chromatids move toward opposite poles.

__________ is the stage of mitosis in which chromatids move toward opposite poles.
A) Anaphase
B) Telophase
C) Metaphase
D) Prophase
E) Interphase

cuchillo   310   3 Replies

archie90

__________ is the multiplication of root tissue from explants on nutrient media.

__________ is the multiplication of root tissue from explants on nutrient media.

__________ is the multiplication of root tissue from explants on nutrient media.
 a. Root initiation
 b. Callus culture
 c. Shoot initiation
 d. Embryoids

Shudson   53   1 Reply

jessmall25

__________ is the most common type of fermenter which relies on an agitator to circulate oxygen.

__________ is the most common type of fermenter which relies on an agitator to circulate oxygen.

__________ is the most common type of fermenter which relies on an agitator to circulate oxygen.
 a. Airlift
 b. Biogas
 c. Continuous
 d. Stirred tank

Glee2   58   1 Reply

Paulina

__________ is the most abundant immunoglobulin in the blood plasma and is produced during primary ...

__________ is the most abundant immunoglobulin in the blood plasma and is produced during primary ...

__________ is the most abundant immunoglobulin in the blood plasma and is produced during primary and secondary responses.
 a. IgA
 b. IgM
 c. IgG
 d. IgD

BJL   33   1 Reply

ItssBreanna99

__________ is one of the most valuable polymers obtained from plants.

__________ is one of the most valuable polymers obtained from plants.

__________ is one of the most valuable polymers obtained from plants.
 a. PVC
 b. Rubber
 c. PHA
 d. Interferon

silverstar46   37   2 Replies

silverstar46

__________ is initiated at sequences called origins.

__________ is initiated at sequences called origins.

__________ is initiated at sequences called origins.
A) DNA replication
B) Translation
C) Splicing
D) Transcription
E) Transposition

cuchillo   571   3 Replies

archie90

__________ is formed by the degranulation of mast cells and caused vasodilation and increased blood ...

__________ is formed by the degranulation of mast cells and caused vasodilation and increased blood ...

__________ is formed by the degranulation of mast cells and caused vasodilation and increased blood vessel permeability.
 a. Prostaglandin
 b. Leukotriene
 c. Histamine
 d. Kinin

tabikaa1   56   1 Reply

Sickalou

__________ is an important crop plant that has been produced using protoplast regeneration.

__________ is an important crop plant that has been produced using protoplast regeneration.

__________ is an important crop plant that has been produced using protoplast regeneration.
 a. Cytokinin
 b. Auxin
 c. Flax
 d. Callus

aprdavis90   42   1 Reply

Andie95

__________ is an excellent alternative way of propagating plants asexually.

__________ is an excellent alternative way of propagating plants asexually.

__________ is an excellent alternative way of propagating plants asexually.
 a. Tissue culture
 b. Callus culture
 c. Protoplast culture
 d. Organ culture

Cris   53   2 Replies

Cris

__________ is a secondary metabolite produced by fermentation.

__________ is a secondary metabolite produced by fermentation.

__________ is a secondary metabolite produced by fermentation.
 a. Polysaccharide
 b. Amino acid
 c. Nucleic acid
 d. Alkaloid

ilaydayolac   56   1 Reply

Trinh Vy

__________ is a primary metabolite produced by fermentation.

__________ is a primary metabolite produced by fermentation.

__________ is a primary metabolite produced by fermentation.
 a. Pigment
 b. Toxin
 c. Antibiotic
 d. Ethanol

tabikaa1   58   1 Reply

jdbrei

__________ is a primary lymphoid tissue found within the vertebrae, ribs, sternum, long bones, ...

__________ is a primary lymphoid tissue found within the vertebrae, ribs, sternum, long bones, ...

__________ is a primary lymphoid tissue found within the vertebrae, ribs, sternum, long bones, pelvis and is the site of B-cell differentiation.
 a. Spleen
 b. Thymus
 c. Appendix
 d. Bone marrow

Cris   51   1 Reply

ashlo

__________ is a primary lymphoid gland that lies in front of the heart and is the site of T-cell ...

__________ is a primary lymphoid gland that lies in front of the heart and is the site of T-cell ...

__________ is a primary lymphoid gland that lies in front of the heart and is the site of T-cell differentiation.
 a. Thymus
 b. Adenoid
 c. Appendix
 d. Spleen

tabikaa1   45   2 Replies

tabikaa1

__________ is a plant growth hormone.

__________ is a plant growth hormone.

__________ is a plant growth hormone.
 a. Tissue plasminogen activator
 b. Superoxide dismutase
 c. Cytokinin
 d. Erythropoietin

Bluetigerfrog89   61   1 Reply

jrodriguez16

__________ is a pharmaceutical product manufactured using recombinant DNA technology which is a ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology which is a ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology which is a plant product that is used for the treatment of ovarian cancer.
 a. Interferon
 b. Taxol
 c. Tissue plasminogen activator
 d. Superox

kelseymullerr   62   1 Reply

Trinh Vy

__________ is a pharmaceutical product manufactured using recombinant DNA technology which dissolves ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology which dissolves ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology which dissolves the fibrin of blood clots.
 a. Complement
 b. Tumor necrosis factor-alpha
 c. Tissue plasminogen activator
 d. Superoxide dismut

Sarah_taylorr   35   1 Reply

Trinh Vy

__________ is a pharmaceutical product manufactured using recombinant DNA technology that is used in ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology that is used in ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology that is used in the treatment of anemia.
 a. Tumor necrosis factor-alpha
 b. Tissue plasminogen activator
 c. Erythropoietin
 d. Superoxide dism

kath4ever   57   1 Reply

qdolet

__________ is a pharmaceutical product manufactured using recombinant DNA technology that ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology that ...

__________ is a pharmaceutical product manufactured using recombinant DNA technology that counteracts the effects of chemotherapy and improves resistance to infectious diseases such as AIDS.
 a. Colony-stimulating factor
 b. Superoxide dis

ilaydayolac   76   1 Reply

Blackfireluv

__________ is a microbial enzyme that is used to enhance flavor in cheese making.

__________ is a microbial enzyme that is used to enhance flavor in cheese making.

__________ is a microbial enzyme that is used to enhance flavor in cheese making.
 a. Lipase
 b. Prostaglandins
 c. Lactase
 d. Pectinase

melanieringel18   44   1 Reply

em1996

__________ is a microbial enzyme that is used in the production of high fructose corn syrup.

__________ is a microbial enzyme that is used in the production of high fructose corn syrup.

__________ is a microbial enzyme that is used in the production of high fructose corn syrup.
 a. Lipase
 b. Tumor necrosis factor-alpha
 c. Lactase
 d. Alpha-amylase

Glee2   80   1 Reply

hehehxd

__________ is a microbial enzyme that is a detergent additive.

__________ is a microbial enzyme that is a detergent additive.

__________ is a microbial enzyme that is a detergent additive.
 a. Pectinase
 b. Protease
 c. Lactase
 d. Lipase

cali721   73   2 Replies

cali721

__________ is a microbial enzyme that dissolves blood clots.

__________ is a microbial enzyme that dissolves blood clots.

__________ is a microbial enzyme that dissolves blood clots.
 a. Leukotriene
 b. Lipase
 c. Lactase
 d. Tissue plasminogen activator

raquelwoods14   61   1 Reply

Paulina

__________ is a culture of plant cells with their cell walls removed.

__________ is a culture of plant cells with their cell walls removed.

__________ is a culture of plant cells with their cell walls removed.
 a. Cell culture
 b. Organ culture
 c. Protoplast culture
 d. Callus culture

raquelwoods14   71   1 Reply

Andie95

__________ is a culture of isolated plant organs such as anthers, roots, buds, and shoots.

__________ is a culture of isolated plant organs such as anthers, roots, buds, and shoots.

__________ is a culture of isolated plant organs such as anthers, roots, buds, and shoots.
 a. Organ culture
 b. Callus culture
 c. Protoplast culture
 d. Embryo culture

Necroshade57   67   1 Reply

Blackfireluv

__________ is a culture of differentiated tissue from an explant that dedifferentiates.

__________ is a culture of differentiated tissue from an explant that dedifferentiates.

__________ is a culture of differentiated tissue from an explant that dedifferentiates.
 a. Embryo culture
 b. Callus culture
 c. Protoplast culture
 d. Organ culture

Cris   66   1 Reply

Trinh Vy

__________ is a culture of cells or cell aggregates in liquid medium.

__________ is a culture of cells or cell aggregates in liquid medium.

__________ is a culture of cells or cell aggregates in liquid medium.
 a. Cell culture
 b. Callus culture
 c. Protoplast culture
 d. Organ culture

poopsicle2   78   1 Reply

Paulina