BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 10, Problem 9WIO
Calico cats have large patches of orange and blackfur; in tortoiseshell cats, the patches are smaller. In which type of cat does X inactivation occur earlier in development? How do you know?
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Chapter 10 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 10.1 - How are chromosomes, DNA, genes, and alleles...Ch. 10.1 - Prob. 2MCCh. 10.2 - Why did Gregor Mendel choose pea plants as his...Ch. 10.2 - Distinguish between dominant and recessive;...Ch. 10.3 - Prob. 1MCCh. 10.3 - How are Punnett squares helpful in following the...Ch. 10.3 - Prob. 3MCCh. 10.3 - Prob. 4MCCh. 10.4 - What is a dihybrid cross, and what is the...Ch. 10.4 - Prob. 2MC
Ch. 10.4 - Prob. 3MCCh. 10.5 - How do the patterns of inheritance differ for...Ch. 10.5 - What is the difference between recombinant and...Ch. 10.5 - Prob. 3MCCh. 10.6 - Prob. 1MCCh. 10.6 - What is pleiotropy?Ch. 10.6 - Prob. 3MCCh. 10.6 - Prob. 4MCCh. 10.7 - Prob. 1MCCh. 10.7 - Prob. 2MCCh. 10.7 - Prob. 3MCCh. 10.8 - How are pedigrees helpful in determining a...Ch. 10.8 - Prob. 2MCCh. 10.9 - Prob. 1MCCh. 10.9 - Prob. 2MCCh. 10 - In the list of four terms below, which term is the...Ch. 10 - Prob. 2MCQCh. 10 - Prob. 3MCQCh. 10 - Prob. 4MCQCh. 10 - Prob. 5MCQCh. 10 - Prob. 6MCQCh. 10 - Prob. 1WIOCh. 10 - List three genes mentioned in this chapter or not...Ch. 10 - Prob. 3WIOCh. 10 - Prob. 4WIOCh. 10 - Prob. 5WIOCh. 10 - Explain how each of the following appears to...Ch. 10 - Prob. 8WIOCh. 10 - Calico cats have large patches of orange and...Ch. 10 - Prob. 10WIOCh. 10 - Review Burning Question 10.10, which describes the...Ch. 10 - Prob. 1PITCh. 10 - Analyze the concept map and then explain the...Ch. 10 - Add meiosis, gametes, mutations, incomplete...Ch. 10 - In rose bushes, red flowers FF or Ff are dominant...Ch. 10 - In Mexican hairless dogs, a dominant allele...Ch. 10 - Prob. 3GPCh. 10 - Two lizards have green skin and large dewlaps...Ch. 10 - A fern with a genotype AA Bb Cc dd Ee mates with...Ch. 10 - In Fraggles, males are genotype XY and females are...
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- Barr bodies are formed to adjust X chromosome dosage in species other than humans, such as Drosophila (fruit flies) and C. elegans (nematodes). True or False ?arrow_forwardexplain Position-effect variegation in Drosophila?arrow_forwardIn Drosophila sex determination (Check all that apply.) A) XY individuals transcribe the Sxl gene early but not late. B XX individuals carry the Sxl gene, XY individuals do not. XX individuals transcribe the Sxl gene, XY individuals do not. XX individuals express the Sxl protein, XY individuals do not. E) The Sxl transcript (Pre-MRNA) is spliced differently in XX compared to XY individuals.arrow_forward
- a) Assume that colour is controlled by a single sex-influenced gene where green is expressed preferentially in males. Individuals I-1 and I-2 are homozygous for red and green respectively. Which individual/s in generation II will be red? b) If colour is a controlled by cytoplasmic DNA, which individual/s in generation II will be green?arrow_forwardThe normal sequence of markers on a certain Drosophila chromosome is ABCDE*FGHIJK, where the asterisk represents the centromere. Some flies were isolated with a chromosome aberration that has the following structure: ABCDE*FIJK . This represents a O a) deletion of GH segment O b) inversion of GH segment O c) deletion O d) deletion of centromerearrow_forwardHow do we know that Drosophila utilizes a different sexdetermination mechanism than mammals, even though it has the same sex-chromosome compositions in males and females?arrow_forward
- Bow-legs is hypothesized to be X-linked recessive trait in Drosophila melanogaster. The P1 virgin females were, once again, homozygous wild type but the males were bow-legged. There were 52 wild type males and 67 wild type females in the F1 generation. The F2 generation contained 30 wild type males, 75 wild type females, 40 bow-legged males and no bow-legged females. Is this what is to be expected? Use chi-square to prove your position.arrow_forwardTwo hedgehog parents are heterozygous at the spiny locus, each with genotype Ss. This locus affects the length of the individuals’ spines, which ranges from 1 cm in SS homozygotes to 3 cm in ss homozygotes.Inheritance of spine length in this family is entirely due to the spiny locus and it exhibits additivity. Remember that development of spines depends on thousands of genes, but we’re only considering this one gene because it’s the one that varies in a way that affects spine length in this family. a) List all of the phenotypes we could observe among offspring of these Ss heterozygote parents. b) What’s the probability that an offspring of these heterozygous parents is an SS homozygote? c) If the parents have exactly two offspring, what is the probability that the two hedgehog kids have no alleles in common? In other words, what’s the probability that one kid is SS and the other ss?arrow_forwardIn Drosophila, a heterozygous female for the X-linkedrecessive traits a, b, and c was crossed to a male that phenotypically expressed a, b, and c. The offspring occurred inthe following phenotypic ratios.+ b c 460a + + 450a b c 32+ + + 38a + c 11+ b + 9 No other phenotypes were observed.(a) What is the genotypic arrangement of the alleles ofthese genes on the X chromosome of the female?arrow_forward
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