Expression of the Hox proteins is spatially and temporally regulated during embryonic development, that is to...
Expression of the Hox proteins is spatially and temporally regulated during embryonic development, that is to say, the hox genes control the expression of all of the other genes involved in the development of an animal embryo Why would the hox genes be very similar from one organism to the next?
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Expression of the Hox proteins is spatially and temporally
regulated during embryonic development, that is to...
on 6 of 20 0 points Save A You are trying to understand how the expression...
on 6 of 20 0 points Save A You are trying to understand how the expression of the estrogen receptor (ER) gene impacts female development because you are interested in breast cancer. Your first question is whether receptor gene expression is regulated at the transcriptional or translational level during embryonic development in your mouse model system. Which of the following will give you an answer? A. An analysis of amino acid production by the different cells you are examining shows...
Explain the following in terms a highschooler would understand (from article Expression of HoxD Genes in...
Explain the following in terms a highschooler would understand (from article Expression of HoxD Genes in Developing and Regenerating Axolotl Limbs, 1998): DISCUSSION: Expression of HoxD genes in developing axolotl limb buds. We have examined the expression of Hoxd-8, Hoxd10, and Hoxd-11 genes in axolotl limb buds and find many similarities between the patterns of expression in axolotls and those described for other vertebrates. Similarities are most pronounced in phases I and II (Nelson et al., 1996; Shubin et al.,...
VOLJNO Lactose-fermenting bacteria metabolize lactose using two proteins, one binds external lactose and transports it into...
VOLJNO Lactose-fermenting bacteria metabolize lactose using two proteins, one binds external lactose and transports it into the cell, the other breaks down the lactose that comes into the cell. The two proteins are coded for by two genes that are under the control of a single promoter. You carry out a lactose fermentation test on an unknown bacterium and find that the result is positive. All of the following are applicable to this bacterium growing in the lactose broth, EXCEPT:...
QUESTION 1 Lactose-fermenting bacteria metabolize lactose using two proteins, one binds external lactose and transports it...
QUESTION 1 Lactose-fermenting bacteria metabolize lactose using two proteins, one binds external lactose and transports it into the cell, the other breaks down the lactose that comes into the cell. The two proteins are coded for by two genes that are under the control of a single promoter. You carry out a lactose fermentation test on an unknown bacterium and find that the result is positive. All of the following are applicable to this bacterium growing in the lactose broth,...
UNIT 33 | Embryonic Development and Heredity 671 s. What is the specific function of the...
UNIT 33 | Embryonic Development and Heredity 671 s. What is the specific function of the two umbilical arteries? 2. Observe a fresh or preserved animal fetus and placenta, if available. Identify the following structures and then write a brief description of each a. Placenta b. Amnion (amniotic sac) c. Umbilical cord 蚰鷊 3. Observe a model of a pregnant human torso, if available Figre33-7 Human male karyotype with 23 pairs The placenta is located in which region of the...
Developmental Biology Help! Please answer all the questions 1) We discussed the fact that each stripe...
Developmental Biology Help! Please answer all the questions 1) We discussed the fact that each stripe expression pattern is affected by the enhancer region that is utilized. Knowing that the maternal genes and the gap genes can both contribute to the pair-rule genes, and that in many cases multiple stripes may be contained in one area of GAP, how does the embryo have definition of stripes if all of these transcription factors can be within the same cell A it...
Part 2. Adult hemoglobin is composed of two alpha subunits and two beta subunits. There are...
Part 2. Adult hemoglobin is composed of two alpha subunits and two beta subunits. There are several genes that code for proteins closely related to beta globin. Each of Epsilon, Gamma, and Beta can all pair with Alpha globin to form functional hemoglobin. 1. Epsilon: expressed during early embryogenesis. 2. Gamma: expressed during later fetal development. 3. Beta: expressed after fetal development into adulthood All of the beta-family globin genes are regulated by a set of enhancer elements called the...
1 What is an imprinted gene? Select one: a. A gene that is found on a...
1 What is an imprinted gene? Select one: a. A gene that is found on a Barr body b. A gene that is silenced upon inheritance from a designated parent c. A gene that is inherited from only one parent d. A gene that is encoded on only one of the two copies of a chromosome Question 2 Which of the following is NOT a typical characteristic of cancer? Select one: a. Malignant cancers are typically not able to metastasize...
1) Which of the following tissue type is incorrectly paired with the germ layer it originates...
1) Which of the following tissue type is incorrectly paired with the germ layer it originates from? A) Ectoderm - skin B) Mesoderm - nervous system C) Endoderm - digestive system D) all pairings are correct 2) Which of the following is a function of a skeletal system? A) body posture B) transfer of forces created by muscles C) physical protection of organs and tissues D) all of the above 3) Suppose a researcher for a pest-control company developed a...
Place these events that occur during protein synthesis in the proper sequence - ...
Place these events that occur during protein synthesis in the proper sequence - I. II. III. IV. An aminoacyl-tRNA binds to the A site - I. II. III. IV. A peptide bond forms between the new amino acid and a polypeptide chain - I. II. III. IV. ...
on 6 of 20 0 points Save A You are trying to understand how the expression of the estrogen receptor (ER) gene impacts female development because you are interested in breast cancer. Your first question is whether receptor gene expression is regulated at the transcriptional or translational level during embryonic development in your mouse model system. Which of the following will give you an answer? A. An analysis of amino acid production by the different cells you are examining shows...
VOLJNO Lactose-fermenting bacteria metabolize lactose using two proteins, one binds external lactose and transports it into the cell, the other breaks down the lactose that comes into the cell. The two proteins are coded for by two genes that are under the control of a single promoter. You carry out a lactose fermentation test on an unknown bacterium and find that the result is positive. All of the following are applicable to this bacterium growing in the lactose broth, EXCEPT:...
QUESTION 1 Lactose-fermenting bacteria metabolize lactose using two proteins, one binds external lactose and transports it into the cell, the other breaks down the lactose that comes into the cell. The two proteins are coded for by two genes that are under the control of a single promoter. You carry out a lactose fermentation test on an unknown bacterium and find that the result is positive. All of the following are applicable to this bacterium growing in the lactose broth,...
UNIT 33 | Embryonic Development and Heredity 671 s. What is the specific function of the two umbilical arteries? 2. Observe a fresh or preserved animal fetus and placenta, if available. Identify the following structures and then write a brief description of each a. Placenta b. Amnion (amniotic sac) c. Umbilical cord 蚰鷊 3. Observe a model of a pregnant human torso, if available Figre33-7 Human male karyotype with 23 pairs The placenta is located in which region of the...
Part 2. Adult hemoglobin is composed of two alpha subunits and two beta subunits. There are several genes that code for proteins closely related to beta globin. Each of Epsilon, Gamma, and Beta can all pair with Alpha globin to form functional hemoglobin. 1. Epsilon: expressed during early embryogenesis. 2. Gamma: expressed during later fetal development. 3. Beta: expressed after fetal development into adulthood All of the beta-family globin genes are regulated by a set of enhancer elements called the...
1) Which of the following tissue type is incorrectly paired with the germ layer it originates from? A) Ectoderm - skin B) Mesoderm - nervous system C) Endoderm - digestive system D) all pairings are correct 2) Which of the following is a function of a skeletal system? A) body posture B) transfer of forces created by muscles C) physical protection of organs and tissues D) all of the above 3) Suppose a researcher for a pest-control company developed a...
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