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Home Q & A Board Biology-Related Homework Help Genetics and Developmental Biology
Embryology, epigenetics, prenatal development, etc.
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The interaction of two genes to produce a phenotype was first described by __________.
The interaction of two genes to produce a phenotype was first described by __________.
The interaction of two genes to produce a phenotype was first described by __________.
 
  A. Morgan and Bridges
  B. Mendel
  C. Darwin
  D. Bateson and Punnett
  E. None of the answers are correct
stu.nehagupta   49   1 Reply
6 years ago
A paralog ____________. (Multiple Choice)
A paralog ____________. (Multiple Choice)
A paralog ____________.
 
  A. is found for every gene in mammals
  B. is only found on the X but not the Y chromosome
  C. can explain the lack of phenotype for a gene knockout
  D. cannot be mutated
  E. has the s
WadeChl   49   2 Replies
6 years ago
An individual carries the allele for polydactyly, but is normal. This is an example of __________. ...
An individual carries the allele for polydactyly, but is normal. This is an example of __________. ...
An individual carries the allele for polydactyly, but is normal. This is an example of __________.
 
  A. simple Mendelian inheritance
  B. incomplete dominance
  C. incomplete penetrance
  D. codominance
  E. gene
valerie2500   49   1 Reply
6 years ago
At the molecular level, type A and type B blood differ in which of the following characteristics? ...
At the molecular level, type A and type B blood differ in which of the following characteristics? ...
At the molecular level, type A and type B blood differ in which of the following characteristics?
 
  A. The antigens present on the surface of the red blood cells
  B. The type of sugar found in each type
  C. The antibodies tha
Salmams   49   1 Reply
6 years ago
The unit of transcription at the molecular level is the gene. (True or false?)
The unit of transcription at the molecular level is the gene. (True or false?)
The unit of transcription at the molecular level is the gene.
 
  Indicate whether the statement is true or false
brunex16013   49   1 Reply
6 years ago
Comparative genomics attempts to define evolutionary relationships. (True or false?)
Comparative genomics attempts to define evolutionary relationships. (True or false?)
Comparative genomics attempts to define evolutionary relationships.
 
  Indicate whether the statement is true or false
michelle6899   49   1 Reply
6 years ago
Which one of the following directly interacts with the DNA as a transcriptional regulator?
Which one of the following directly interacts with the DNA as a transcriptional regulator?
Which one of the following directly interacts with the DNA as a transcriptional regulator?
 
  A. cAMP
  B. G protein
  C. Protein kinase A
  D. CREB protein dimer
  E. Glucocorticoid response element
cnv02   49   1 Reply
6 years ago
The process of in situ hybridization is used for which of the following ?
The process of in situ hybridization is used for which of the following ?
The process of in situ hybridization is used for which of the following ?
 
  A. Cytogenetic mapping
  B. Physical mapping
  C. Linkage mapping
Salmams   49   1 Reply
6 years ago
Oogeneis is a gametogenic process following ________ that produces _______.
Oogeneis is a gametogenic process following ________ that produces _______.
Oogeneis is a gametogenic process following ________ that produces _______.
 
  A. binary fission ; sperm cells
  B. mitosis ; egg cells
  C. meiosis ; egg cells
  D. meiosis ; sperm cells
  E. mitosis ; sperm cells
littlescientist   49   2 Replies
6 years ago
A purine on one strand of the DNA is always paired with a pyrimidine on the other strand. ...
A purine on one strand of the DNA is always paired with a pyrimidine on the other strand. ...
A purine on one strand of the DNA is always paired with a pyrimidine on the other strand.
 
  Indicate whether the statement is true or false
NicoNaples75   49   1 Reply
6 years ago
61 different tRNAs are required for translation both in vivo and in vitro. (True or false?)
61 different tRNAs are required for translation both in vivo and in vitro. (True or false?)
61 different tRNAs are required for translation both in vivo and in vitro.
 
  Indicate whether the statement is true or false
jeddsn   49   1 Reply
6 years ago
What field of study of genetics applies statistics and mathematical tools to genetic sequences in ...
What field of study of genetics applies statistics and mathematical tools to genetic sequences in ...
What field of study of genetics applies statistics and mathematical tools to genetic sequences in order to better understand the genetic information?
 
  A. Structural genomics
  B. Functional genomics
  C. Proteomics
  D. B
gltech99   49   1 Reply
6 years ago
Which enzyme is unique to the retro elements?
Which enzyme is unique to the retro elements?
Which enzyme is unique to the retro elements?
 
  A. Reverse transcriptase
  B. Reverse resolvase
  C. Transposase
  D. Integrase
  E. Reverse integrase
darcyyyy   49   1 Reply
6 years ago
The Law of Independent Assortment states that
The Law of Independent Assortment states that
The Law of Independent Assortment states that
 
  A. Two different genes will randomly assort their alleles during the formation of haploid cells
  B. Two different alleles will randomly assort during the formation of haploid cells
Yvonne98   49   1 Reply
6 years ago
Which of the following categories of genes is typically NOT encoded in cpDNA?
Which of the following categories of genes is typically NOT encoded in cpDNA?
Which of the following categories of genes is typically NOT encoded in cpDNA?
 
  A. Genes encoding rRNA
  B. Genes encoding tRNA
  C. Genes for photosynthetic pathway enzymes
  D. Genes encoding nuclear proteins
jeddsn   49   1 Reply
6 years ago
The urethra is divided into the prostatic urethra and the __________ urethra.
The urethra is divided into the prostatic urethra and the __________ urethra.
The urethra is divided into the prostatic urethra and the __________ urethra.
 
  A. penile
  B. long
  C. distal
  D. exosmotic
hay456   49   2 Replies
6 years ago
What powerful vasoconstrictor raises the blood pressure by causing the peripheral arterioles to ...
What powerful vasoconstrictor raises the blood pressure by causing the peripheral arterioles to ...
What powerful vasoconstrictor raises the blood pressure by causing the peripheral arterioles to constrict?
 
  A. Renin
  B. Angiotensin I
  C. Angiotensin II
  D. Angiotensin-converting enzyme
  E. Aldosterone
brunex16013   49   1 Reply
6 years ago
__________ is the abnormal factor that is more resistant to normal inactivation. (Fill in the blank)
__________ is the abnormal factor that is more resistant to normal inactivation. (Fill in the blank)
__________ is the abnormal factor that is more resistant to normal inactivation.
 
  Fill in the blank(s) with correct word
aj20386   49   2 Replies
6 years ago
A few ovarian tumors produce sex hormones. What is one such tumor called?
A few ovarian tumors produce sex hormones. What is one such tumor called?
A few ovarian tumors produce sex hormones. What is one such tumor called?
 
  A. Teratoma
  B. Granulosa cell tumor
  C. Mucinous cystadenoma
  D. Serous cystadenoma
sms4lyfe   49   1 Reply
6 years ago
Coagulation factors restrict the clotting process to a limited area. (True or false?)
Coagulation factors restrict the clotting process to a limited area. (True or false?)
Coagulation factors restrict the clotting process to a limited area.
 
  Indicate whether the statement is true or false
mehdido712   49   1 Reply
6 years ago
At pH of 7.4, the ratio of bicarbonate to carbonic acid in body fluids is __________ parts sodium ...
At pH of 7.4, the ratio of bicarbonate to carbonic acid in body fluids is __________ parts sodium ...
At pH of 7.4, the ratio of bicarbonate to carbonic acid in body fluids is __________ parts sodium bicarbonate to one part carbonic acid.
 
  A. 1
  B. 10
  C. 20
  D. 30
jeddsn   49   1 Reply
6 years ago
Any one chromosome can carry multiple alleles at a given locus. (True or false?)
Any one chromosome can carry multiple alleles at a given locus. (True or false?)
Any one chromosome can carry multiple alleles at a given locus.
 
  Indicate whether the statement is true or false
koala423   49   1 Reply
6 years ago
Administration of an antibiotic may alter the patient's normal bacterial flora of the oral cavity, ...
Administration of an antibiotic may alter the patient's normal bacterial flora of the oral cavity, ...
Administration of an antibiotic may alter the patient's normal bacterial flora of the oral cavity, genital tract, and gastrointestinal tract and may predispose the patient to an infection with an antibiotic-resistant microorganism.
 
  Ind
chayes2321   49   1 Reply
6 years ago
A young man sustained a severe chest injury with multiple rib fractures in a snowmobile accident. ...
A young man sustained a severe chest injury with multiple rib fractures in a snowmobile accident. ...
A young man sustained a severe chest injury with multiple rib fractures in a snowmobile accident. What is an important and relatively common complication of this type of injury?
 
  A. Pneumothorax secondary to laceration of the lung by br
adrianfebrianya   49   1 Reply
6 years ago
Which of the following conditions does NOT predispose to pneumonia?
Which of the following conditions does NOT predispose to pneumonia?
Which of the following conditions does NOT predispose to pneumonia?
 
  A. Poor pulmonary ventilation and retention of bronchial secretions
  B. Aspiration of foreign material into the respiratory tract
  C. Obstruction of a bron
Fignshev   49   2 Replies
6 years ago
Outbreaks of hepatitis _____ often occur in young children attending daycare centers and can be ...
Outbreaks of hepatitis _____ often occur in young children attending daycare centers and can be ...
Outbreaks of hepatitis _____ often occur in young children attending daycare centers and can be attributed to poor handwashing.
 
  a. A
  b. B
  c. C
  d. D
stu.nehagupta   49   1 Reply
6 years ago
An increase in the rate of red blood cell breakdown causes which form of jaundice?
An increase in the rate of red blood cell breakdown causes which form of jaundice?
An increase in the rate of red blood cell breakdown causes which form of jaundice?
 
  a. Obstructive
  b. Hemolytic
  c. Hepatocellular
  d. Metabolic
JustGuilty   49   2 Replies
6 years ago
During the years that a woman is more likely to be sexually active, the vagina mucosa is protect-ed ...
During the years that a woman is more likely to be sexually active, the vagina mucosa is protect-ed ...
During the years that a woman is more likely to be sexually active, the vagina mucosa is protect-ed from infection by:
 
  a. the presence of autoantibodies.
  b. an acidic pH.
  c. low estrogen levels.
  d. douching.
GermanBiter14   49   2 Replies
6 years ago
A 2-year-old male is diagnosed with Wilms tumor. Which clinical condition is often associated with ...
A 2-year-old male is diagnosed with Wilms tumor. Which clinical condition is often associated with ...
A 2-year-old male is diagnosed with Wilms tumor. Which clinical condition is often associated with this disease?
 
  a. Cystic disease of the liver
  b. Aniridia
  c. Anemia
  d. Hypothyroidism
kyrabunga   49   1 Reply
6 years ago
A nurse recalls the superficial cortical nephrons account for ____ of all nephrons. What will be ...
A nurse recalls the superficial cortical nephrons account for ____ of all nephrons. What will be ...
A nurse recalls the superficial cortical nephrons account for ____ of all nephrons.
 
  What will be an ideal response?
ronswanson11   49   1 Reply
6 years ago
What structure supplies blood to the medulla?
What structure supplies blood to the medulla?
What structure supplies blood to the medulla?
 
  a. Renal artery
  b. Arcuate artery
  c. Peritubular capillary
  d. Vasa recta
Sauce1387   49   1 Reply
6 years ago
The glomerular filtration rate (GFR) is directly related to the:
The glomerular filtration rate (GFR) is directly related to the:
The glomerular filtration rate (GFR) is directly related to the:
 
  a. perfusion pressure in the glomerular capil-laries.
  b. oncotic pressure in the glomerular capillar-ies.
  c. vascular resistance in the glomerular arte-riol
vincent_pijen   49   1 Reply
6 years ago
A newborn is diagnosed with respiratory distress syndrome. When obtaining the patient's histo-ry, ...
A newborn is diagnosed with respiratory distress syndrome. When obtaining the patient's histo-ry, ...
A newborn is diagnosed with respiratory distress syndrome. When obtaining the patient's histo-ry, which of the following is the most important predisposing factor for this condition?
 
  a. Low birth weight
  b. Alcohol consumption by
bezel   49   1 Reply
6 years ago
A 50-year-old is diagnosed with lung cancer. The health history includes a 30-year history of ...
A 50-year-old is diagnosed with lung cancer. The health history includes a 30-year history of ...
A 50-year-old is diagnosed with lung cancer. The health history includes a 30-year history of smoking, exposure to air pollution, asbestos, and radiation. What had the greatest impact on the development of his cancer?
 
  a. Radiation
aschaffer   49   1 Reply
6 years ago
Which structural property of DNA is crucial for the conservation of genetic information?
Which structural property of DNA is crucial for the conservation of genetic information?
Which structural property of DNA is crucial for the conservation of genetic information?
a. antiparallelism
b. the ability to form a double helix
c. base-pair complementarity
d. all of the above
With806   49   1 Reply
6 years ago
The Km for an enzyme-catalyzed reactiona. determines the shape of the kinetics curve. b. determines ...
The Km for an enzyme-catalyzed reactiona. determines the shape of the kinetics curve. b. determines ...
The Km for an enzyme-catalyzed reaction
a. determines the shape of the kinetics curve.
b. determines the Vmax for the reaction.
c. is a measure of the affinity of the substrate for the enzyme.
d. is a measure of the rate of the
AidenSmith   49   1 Reply
6 years ago
Protein self-splicing (Multiple Choice)
Protein self-splicing (Multiple Choice)
Protein self-splicing
a. is autocatalytic.
b. occurs in all eukaryotes.
c. is an ATP-dependent process.
d. a and b.
e. all of the above
AidenSmith   49   1 Reply
6 years ago
All the following statements about  phage are true except:
All the following statements about  phage are true except:
All the following statements about  phage are true except:
a.  phage lyse E. coli upon release of newly synthesized phage.
b. Foreign DNA up to approximately 50 kilobases can be cloned into  phage.
c. Both cDNA and genomic DNA can
AidenSmith   49   1 Reply
6 years ago
Splicing joins a. two intron sequences. b. two polypeptides. c. two DNA molecules. d. two exon ...
Splicing joins a. two intron sequences. b. two polypeptides. c. two DNA molecules. d. two exon ...
Splicing joins
a. two intron sequences.
b. two polypeptides.
c. two DNA molecules.
d. two exon sequences.
AidenSmith   49   1 Reply
6 years ago
Sex lethal protein in Drosophila can best be described as a(n) a. splicing regulatory factor. b. RNA ...
Sex lethal protein in Drosophila can best be described as a(n) a. splicing regulatory factor. b. RNA ...
Sex lethal protein in Drosophila can best be described as a(n)
a. splicing regulatory factor.
b. RNA editing factor.
c. transcription factor.
d. all of the above
With806   49   1 Reply
6 years ago
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