Which of the following is not part of a human chromosome in any phase?
| A. |
centromere |
|
| B. |
euchromatin |
|
| C. |
nucleosome |
|
| D. |
histone |
|
| E. |
centriole |
Centriole is not a part of human chromosome. It is an organelle that comprises of a protein called tubulin. A pair of centrioles that are surrounded by a shapeless dense material forms the centromere. Hence, the correct answer is E. centriole. It is not a part of human chromosome.
Which of the following is not part of a human chromosome in any phase? A. centromere...
5. DNA wraps around a octamer resulting in a structure called a a. bead / chromosome b. supercoil / operon C. glycoprotein / nucleosome d. histone / nucleosome e. histone / supercoil
1. A flower is heterozygous for the following inversion of chromosome 1 (dot=centromere) A B C ● D E F G a b e d ● c f g a. Is this a paracentric or pericentric inversion? I am thinking Pericentric? b. Draw the pairing configuration at prophase I including all 4 chromatids. I wasnt too sure how to map the loop out for this one c. Give the genotypes of the gametes from this meiosis if there is a...
3. A phenotypically abnormal individual has a phenotypically normal father with an inversion on one copy of chromosome 7 and a normal mother without any changes in chromosome structure. The order of genes along chromosome 7 in the father is as follows: normal chromosome 7) RTDM centromere P UXZC RTDUP centromere MXZC (inverted chromosome 7) The phenotypically abnormal offspring has a chromosome 7 with the following order of genes R TDM centromere P U D TR With a sketch (complete),...
1) given the following sequence of genes on a chromosome, determine what change in chromosome structure occurred. the asterisk indicates the centromere before: A B C D * E F G H after: A C D * E F G H a) inversion b) gene duplication c) terminal deletion d) interstitial deletion 2) given the following sequence of genes on a chromosome, determine what change in chromosome structure occurred. the asterisk indicates the centromere before: A B C D *...
Part A. This structure represents the way chromatin would appear
during;
prometaphase of mitosis
metaphase of mitosis
G1 phase of interphase
metaphase of meiosis
Part B. A complete nucleosome is indicated by the letter;
A
B
C
A and B
Part C What does the letter C in this figure represent?
RNA polymerase
transcription factors
a DNA double helix
histone proteins
condensed chromosomes
Part D What is this an image of?
supercoils
a nucleosome
a DNA double helix
histones
loops...
A normal chromosome and its homolog carrying an inversion are given below (* Y= centromere): Normal: A B C D * EFGH Inversion:a fe* dcbgh Answer the following questions about these homologs (8 points total) With pen and paper, diagram the alignment of these homologs during meiosis in an inversion heterozygote. Be sure to include all chromatids.
In this diagram, the top chromosome is the wild-type chromosome, while the bottom one carries an inversion. The star is the centromere. A B C * D E F G A B F E D * C G 1. During meiosis recombination occurs between the centromere and the region marked "D". Draw out the recombinant gametes showing the gene order and position of the centromeres in each. 2. Are either of the recombinant gametes likely to give rise to viable...
A normal chromosome and its homolog carrying an inversion are given below (* Y= centromere): Normal: ABCD * EFGH Inversion:a fe* dcbgh Answer the following questions about these homologs (8 points total) What gamete genotypes are produced if there is a crossover between B & C? Be sure to use a * to indicate the position of the centromere. Put each gamete on a separate line, and write (V) or (I) beside each one to indicate whether it is viable...
11. A normal chromosome and its homolog carrying an inversion are given below (Y* = centromere) Normal: ABCDEFGH Inversion: a dcbe*fgh Answer the following questions about these homologs (8 points total) 11c. Suggest four gamete genotypes that could be produced during a single episode of meiosis if there is a is a crossover between B & C in the inversion heterozygote. Be sure to indicate the position of the centromere with a * Write V or I beside each gamete...
Which does not describe eukaryotic histones in a nucleosome structure? A. A core histone plus a linker histone octamer B. A core histone octamer plus a linker histone C. A core histone octamer plus 2 linker histones D. A core histone nonamer E. A core histone heptamer plus a linker histone