a plant from species A 2n=6 fertilizes a plant from a species G 2n=8. if a...
Homework Answers
Species A 2n=6 (Non-disjunction results in
double the expected number of chromosomes in a cell.
e.g. after meiosis the expected chromosome number in the gamete
cell is n , but if non-dysjunction occurs during meiosis then the
gamete will end up with 2n that is twice the expected number of
chromosomes).
Therefore the expected number of chromosome due to non disjunction in (species A) 2n = 6
Species G 2n=8
As it is normal so due to meiosis the expected number of chromosome n in (species G) n = 8/2 = 4
Therefore,
OFFSPRINGS WILL HAVE NUMBER OF CHROMOSOME 3n= 4+6= 10
3n= 4+6= 10 (3n = expected number of chromosome in species G + expected number of chromosome in species A)
If non-disjunction produces a diploid (2n) gamete and it then
fuses with a normal haploid (n)
gamete, then a triploid (3n) organism would be formed (but it would
be infertile as each
chromosome would not have a homologous pair at meiosis).
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a
plant from species A 2n=6 fertilizes a plant from a species G 2n=8.
if a...
am 11 westion 7 a) A Drosophila species is diploid (2n=8), with letters H through J...
am 11 westion 7 a) A Drosophila species is diploid (2n=8), with letters H through J corresponding to four different chromosomes. In this species, how would you categorize the following genomes? For full credit include the ploidy formula and the technical name for the each. (4 points) a. HH I J KK b. HH III JJ KK c. HHHH III JJJJ KKKK d. HH II JJ KK b) What is the difference between trisomy and triploid and which is likely...
What is the diploid number of chromosomes in this plant? _______________ ["2N=4", "N=8", "2N=16", "2N=8", "N=4",...
What is the diploid number of chromosomes in this plant?
_______________ ["2N=4", "N=8", "2N=16", "2N=8", "N=4", "N=16"]
Give the names of each stage of mitosis or meiosis shown in
the:
left panel:
________________ ["anaphase of meiosis I", "metaphase
of meiosis I", "prophase of meiosis II", "metaphase of mitosis",
"telophase of mitosis", "anaphase of meiosis II", "anaphase of
mitosis", "prophase of mitosis", "telophase of meiosis II",
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QUESTION 5 You cross want to create a new hybrid plant. You cross Plant 1 (2n=10)...
QUESTION 5 You cross want to create a new hybrid plant. You cross Plant 1 (2n=10) with Plant 2 (2n=14) and generate a generation of hybrid plants. Most of the hybrid plants are infertile, however, you do find a hybrid plant that is fertile. You reason that this plant must have undergone a non-disjunction event that now rendered it fertile. If your reasoning is correct, how many chromosomes does this fertile hybrid plant have? O a. 24 Ob. 12 O...
1) An organism has 2n = 6 chromosomes with alleles A B / a b on...
1) An organism has 2n = 6 chromosomes with alleles A B / a b on the chromosome 1 homologous pair, alleles D / d on the chromosome 2 homologous pair, alleles E F / e f on the chromosome 3 homologous pair. Show two different ways that chromosomes could align at the metaphase plate during Meiosis I (show the chromosomes and alleles). Assume no crossing over. How many combinations of chromosomes are possible in the gametes? Please show me...
2. The organism named A. albopictus has a karyotype of 2n = 6. Answer the following...
2. The organism named A. albopictus has a karyotype of 2n = 6. Answer the following questions on meiosis for this organism. (8 marks) a. Draw the diagrams showing Metaphase I and Metaphase II for this organism. 10 B. A haploid set of unreplicated chromosomes of the above organism has a mass of 1.5 pg (picogram). What is the mass of DNA in single Aedes albopictus cell in prophase I and prophase II? C. Through independent assortment alone, how many...
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Plant species A (n=7) is crossed with a species B (n=10) and produces a fertile hybrid...
Plant species A (n=7) is crossed with a species B (n=10) and produces a fertile hybrid that will be a. triploid b. autotetraploid c. allotetraploid d. trisomic e. monosomic How many chromosomes will the hybrid have a 7 b 10 c 14 d. 17 e. 34
Plant species A (n=7) is crossed with a species B (n=10) and produces a fertile hybrid...
Plant species A (n=7) is crossed with a species B (n=10) and produces a fertile hybrid that will be a. triploid b. autotetraploid c. allotetraploid d. trisomic e. monosomic How many chromosomes will the hybrid have a 7 b 10 c 14 d. 17 e. 34
22. [9 PTS] Turner syndrome results when an individual has a genotype of XO (a single...
22. [9 PTS] Turner syndrome results when an individual has a genotype of XO (a single X chromosome), and no other sex chromosomes. Color-blindness results from mutation of a single gene on the X chromosome. A couple, both of whom have normal color vision, have a color-blind child with Turner's syndrome. a. Did non-disjunction occur in the mother, or the father, or is it impossible to tell? Explain your answer. (3 pts) (continued next page. b. In the space provided...
Zylins are a diploid, 2n = 6, species and a common mutation found in baby Zylins...
Zylins are a diploid, 2n = 6, species and a common mutation
found in baby Zylins is trisomy 3 (2n +1). You are
trying to determine if this trisomy is more commonly caused by
nondisjunction events during egg formation or sperm
formation. A Southern blot, labeled with a probe for
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Six lanes...
am 11 westion 7 a) A Drosophila species is diploid (2n=8), with letters H through J corresponding to four different chromosomes. In this species, how would you categorize the following genomes? For full credit include the ploidy formula and the technical name for the each. (4 points) a. HH I J KK b. HH III JJ KK c. HHHH III JJJJ KKKK d. HH II JJ KK b) What is the difference between trisomy and triploid and which is likely...
What is the diploid number of chromosomes in this plant?
_______________ ["2N=4", "N=8", "2N=16", "2N=8", "N=4", "N=16"]
Give the names of each stage of mitosis or meiosis shown in
the:
left panel:
________________ ["anaphase of meiosis I", "metaphase
of meiosis I", "prophase of meiosis II", "metaphase of mitosis",
"telophase of mitosis", "anaphase of meiosis II", "anaphase of
mitosis", "prophase of mitosis", "telophase of meiosis II",
"metaphase of meiosis II", "telophase of meiosis I", "prophase of
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QUESTION 5 You cross want to create a new hybrid plant. You cross Plant 1 (2n=10) with Plant 2 (2n=14) and generate a generation of hybrid plants. Most of the hybrid plants are infertile, however, you do find a hybrid plant that is fertile. You reason that this plant must have undergone a non-disjunction event that now rendered it fertile. If your reasoning is correct, how many chromosomes does this fertile hybrid plant have? O a. 24 Ob. 12 O...
2. The organism named A. albopictus has a karyotype of 2n = 6. Answer the following questions on meiosis for this organism. (8 marks) a. Draw the diagrams showing Metaphase I and Metaphase II for this organism. 10 B. A haploid set of unreplicated chromosomes of the above organism has a mass of 1.5 pg (picogram). What is the mass of DNA in single Aedes albopictus cell in prophase I and prophase II? C. Through independent assortment alone, how many...
Assortment 2 Review: Mitosis vs. Meiosis (send with students as HW) Meiosis Parent Cell (2n or n)? Does pairing of homologous chromosomes occur? What aligns at the equatorial plate? Which separates sister chromatids or homologous chromosomes? How many nuclear divisions? How many daughter cells? 2n or n? of 1 D. 1 Normal MODA Manul AalbCcl maDA No Spac... Heading 1 Heading 2 Title Paragraph Styles Which process ensures constancy vs diversity? LISUUS 1) In your own words, explain Mendel's 1"...
22. [9 PTS] Turner syndrome results when an individual has a genotype of XO (a single X chromosome), and no other sex chromosomes. Color-blindness results from mutation of a single gene on the X chromosome. A couple, both of whom have normal color vision, have a color-blind child with Turner's syndrome. a. Did non-disjunction occur in the mother, or the father, or is it impossible to tell? Explain your answer. (3 pts) (continued next page. b. In the space provided...
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found in baby Zylins is trisomy 3 (2n +1). You are
trying to determine if this trisomy is more commonly caused by
nondisjunction events during egg formation or sperm
formation. A Southern blot, labeled with a probe for
RFLPs on chromosome 3, for one of your test families is shown below
(a thicker, darker line indicates twice the amount of DNA; a text
description of the gel follows):
Six lanes...
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