hese genes determine the identity of body parts.
Select one:
a. nucleated genes
b. methylated genes
c. anterior genes
d. hox genes
The answer is option d. Hox genes.
Homeotic Genes control the development of body parts and structures.Animal homeotic genes encode transcription factor proteins are called Hox genes. Hox genes are found in many animals like humans and mice. Mutation in hox genes cause genetic disorders. Hox genes ensure that the correct structures are formed in the correct part of the body.
DNA methylated genes are essential for cell defferentiation and embryonic development.DNA methylation regulates gene expression.Nucleated genes are genes having a nucleus.
hese genes determine the identity of body parts. Select one: a. nucleated genes b. methylated genes...
What statement about HOX genes is false? Question options: A) Hox genes give identity to body segments. B) Hox genes help determine the anterior/posterior body axis. C) So far, Hox genes have only been found in fruit flies. D) All of the above.
8) Bicoid and nano maternal genes play a role in the establishment of body anterior/posterior axes are formed in the fruit fly embryo? c) True d) False 9) What do hox genes act like? f) Control the polarity of the embryo and the formation of the anterior-posterior body axis of many animals (i.e. head to tail formation g) Act as genetic switches that turn on and off other genes, controlling the timing and route of development h) All of the...
QUESTION 1 Hox genes are genes that code for transcription factors. What do transcription factors do? A. Bind to DNA to make it available for transcription B. Make up specific body parts C. Activate ribosomes QUESTION 2 Genes that need to be turned on at the same time (for example, the genes that encode the proteins that build toes) will all respond to the same transcription factor. A. True B. False QUESTION 3 Hox genes are sometimes called "master switches"....
1. Opsonization involves: Select one: a. The binding of an antibody to an epitope on a pathogen b. Rearrangement V and J regions of the light chain locus c. Recombination of different V, D, and J regions of the heavy chain locus d. Expression of MHC Class I proteins on all nucleated cells for recognition of self e. Subtle mutation of the heavy and light chain genes to optimize antibody structure 2. Which of these produces and secretes antibodies in...
The homeotic genes in Drosophila Question 4 Not yet answered Marked out of 1.00 Rag question Select one: a. are expressed at the same level and at the same time in all parts of the developing embryo. ob, only include Hox genes. o care found only in Drosophila. d. determine the structural and functional characteristics of different segments of the developing fly. Question 5 Which evolutionary innovation was most significant in helping tetrapods move to dry terrestrial environments (ie, the...
What do developmental regulatory genes do? Select one: a. decide details of animal construction b. mute active genes c. turn genes on
Biology Questions help me 1. Germline gene therapy would correct a genetic defect in: Select one: a. an unaffected individual only. b. an unaffected individual and his or her offspring. c. an affected individual and all of his or her descendants. d. the parents of an affected individual. 2. An antigen is: Select one: a. any molecule that can elicit an immune response. b. a protein only. c. a nucleic acid only. d. a protein or nucleic acid. 3. Performing...
In Drosophila, the genes for black (b) body and curved (c) wings are linked on the same chromosome. The frequency of recombination between b---c is 0.276. How many recombinant offspring would be expected if 2000 progeny were produced from a testcross between a female heterozygous for both genes and a homozygous recessive male?
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...
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.,...