In which chromosome are there extra copies? And is the cell of this chromosome male or...
Homework Answers
Two copies of the sex chromosome X are found in the cells of females. Males have only one copy of the sex chromosome X and another single copy of the sex chromosome Y in their cells.
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which chromosome are there extra copies? And is the cell of this
chromosome male or...
What is a diploid cell? One that has two copies of each chromosome – one from...
What is a diploid cell? One that has two copies of each chromosome – one from mom and one from dad. A cell that carries the mutation for Cystic Fibrosis. Another term for a sperm or egg cell. A cell that carries only one copy of the X chromosome
6) A human cell containing 22 autosomes and a Y chromosome is A) a somatic cell...
6) A human cell containing 22 autosomes and a Y chromosome is A) a somatic cell of a female. B) a sperm C) a somatic cell of a male. D) an egg. E) a zygote.
1) If the egg with two copies of chromosome 21 were fertilized by a normal sperm...
1) If the egg with two copies of chromosome 21 were fertilized by a normal sperm how many copies of chromosome 21 would there be in the zygote? 2) How many copies of chromosome 21 would there be in each cell in the embryo that developed from this zygote?
You are making an artificial eukaryotic chromosome, and you plan to add two copies of this...
You are making an artificial eukaryotic chromosome, and you plan to add two copies of this chromosome to the nucleus of a diploid yeast cell. What characteristics would you include in the chromosome to make sure that the chromosome pair is (a) properly replicated and (b) passed to each daughter cell during cell division of the yeast? What characteristics could you add to the chromosome to increase the rate of DNA replication?
In the moss Polytrichum commune, the haploid chromosome number is 7. A haploid male gamete fuses...
In the moss Polytrichum commune, the haploid chromosome number is 7. A haploid male gamete fuses with a haploid female gamete to form a diploid cell that divides and develops into the multicellular sporophyte. Cells of the sporophyte undergo meiosis to produce haploid cells called spores. What is the probability that an individual spore will contain a set of chromosomes all of which came from the male gamete? (You may assume that no crossing over occurs during meiosis.) 0 0.5...
Amounts of which of the components of cell cycle regulation vary with cell cycle phase? Cyclin-dependent...
Amounts of which of the components of cell cycle regulation vary with cell cycle phase? Cyclin-dependent kinases Cyclins Checkpoints Kinetochores The synaptonemal complex forms to facilitate pairing of homologous chromosomes during prophase of mitosis and meiosis. prophase of meiosis I and II. c. prophase of meiosis I only. d. all stages of meiosis. Mendel’s Second Law of Independent Assortment refers to the separation of two identical alleles of the same gene. two different alleles of the same gene. alleles...
help 11) In a triploid cell with 4 chromosome triplets (3n = 12), how many sister...
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11) In a triploid cell with 4 chromosome triplets (3n = 12), how many sister chromatids will be found in a nucleus at prophase of mitosis? A) 12 B) 24 C) 6 D) 36 12) In birds, sex is determined by a ZW chromosome scheme. Malos aro ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the...
Colorblindness is a sex-linked trait located in the X chromosome. Which of the following couples would...
Colorblindness is a sex-linked trait located in the X chromosome. Which of the following couples would have all normal sons, but all the daughters will be carriers? A color-blind male and a normal female A color blind male and a female who is a colorblind carrier A normal male and a female who is a colorblind carrier A male who is a colorblind carrier and a colorblind female A normal male and a colorblind female
Why do copies of Tfansposons promote Chromosome rearrangements
Why do copies of Tfansposons promote Chromosome rearrangements
We crossed pure-bred female flies with yellow body and forked-shaped bristles with male flies extra bristles....
We crossed pure-bred female flies with yellow body and
forked-shaped bristles with male flies extra bristles. The
subsequent F1 flies showed all normal phenotypes except that all of
the F1 males are yellow-body. We crossed again the normal F1
females with males homozygous for yellow body, extra bristles, and
forked bristles as a testcross. The number of each category of F2
progeny is shown below. The mutant allele for yellow body is y; the
mutant allele for extra bristles is...
help
11) In a triploid cell with 4 chromosome triplets (3n = 12), how many sister chromatids will be found in a nucleus at prophase of mitosis? A) 12 B) 24 C) 6 D) 36 12) In birds, sex is determined by a ZW chromosome scheme. Malos aro ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the...
Colorblindness is a sex-linked trait located in the X chromosome. Which of the following couples would have all normal sons, but all the daughters will be carriers? A color-blind male and a normal female A color blind male and a female who is a colorblind carrier A normal male and a female who is a colorblind carrier A male who is a colorblind carrier and a colorblind female A normal male and a colorblind female
Why do copies of Tfansposons promote Chromosome rearrangements
We crossed pure-bred female flies with yellow body and
forked-shaped bristles with male flies extra bristles. The
subsequent F1 flies showed all normal phenotypes except that all of
the F1 males are yellow-body. We crossed again the normal F1
females with males homozygous for yellow body, extra bristles, and
forked bristles as a testcross. The number of each category of F2
progeny is shown below. The mutant allele for yellow body is y; the
mutant allele for extra bristles is...
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