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Concept explainers
a.
To determine: Whether males inherit their X chromosome from their mother or from their father.
Introduction: Each somatic cell in humans consists of 46 chromosomes (23 pairs). These include 22 pairs of autosomes and a pair of sex chromosomes (X and Y). Human male have one X and one Y as sex chromosomes while female has two X chromosomes.
b.
To determine: Whether a female has disorder if she has one copy of an X-linked recessive allele for a genetic disorder.
Introduction: Each somatic cell in humans consists of 46 chromosomes (23 pairs). These include 22 pairs of autosomes and a pair of sex chromosomes (X and Y). Human male have one X and one Y as sex chromosomes while female has two X chromosomes.
c.
To determine: Whether a male has disorder if he has one copy of an X-linked recessive allele for a genetic disorder.
Introduction: Each somatic cell in humans consists of 46 chromosomes (23 pairs). These include 22 pairs of autosomes and a pair of sex chromosomes (X and Y). Human male have one X and one Y as sex chromosomes while female has two X chromosomes.
d.
To determine: The number of gametes a female can produce if she is a carrier of an X-linked recessive disorder.
Introduction: Each somatic cell in humans consists of 46 chromosomes (23 pairs). These include 22 pairs of autosomes and a pair of sex chromosomes (X and Y). Human male have one X and one Y as sex chromosomes while female has two X chromosomes.
e.
To determine: Whether the sons and daughters of a male with X-linked recessive disorder and a normal female have genetic disorder, and whether their children be carriers for the disorder.
Introduction: Each somatic cell in humans consists of 46 chromosomes (23 pairs). These include 22 pairs of autosomes and a pair of sex chromosomes (X and Y). Human male have one X and one Y as sex chromosomes while female has two X chromosomes.
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Chapter 10 Solutions
Discover Biology (Sixth Core Edition)
- What is the opening indicated by the pointer? (leaf x.s.) stomate guard cell lenticel intercellular space none of thesearrow_forwardIdentify the indicated tissue? (stem x.s.) parenchyma collenchyma sclerenchyma ○ xylem ○ phloem none of thesearrow_forwardWhere did this structure originate from? (Salix branch root) epidermis cortex endodermis pericycle vascular cylinderarrow_forward
- Identify the indicated tissue. (Tilia stem x.s.) parenchyma collenchyma sclerenchyma xylem phloem none of thesearrow_forwardIdentify the indicated structure. (Cucurbita stem l.s.) pit lenticel stomate tendril none of thesearrow_forwardIdentify the specific cell? (Zebrina leaf peel) vessel element sieve element companion cell tracheid guard cell subsidiary cell none of thesearrow_forward
- What type of cells flank the opening on either side? (leaf x.s.) vessel elements sieve elements companion cells tracheids guard cells none of thesearrow_forwardWhat specific cell is indicated. (Cucurbita stem I.s.) vessel element sieve element O companion cell tracheid guard cell none of thesearrow_forwardWhat specific cell is indicated? (Aristolochia stem x.s.) vessel element sieve element ○ companion cell O O O O O tracheid O guard cell none of thesearrow_forward
- Identify the tissue. parenchyma collenchyma sclerenchyma ○ xylem O phloem O none of thesearrow_forwardPlease answer q3arrow_forwardRespond to the following in a minimum of 175 words: How might CRISPR-Cas 9 be used in research or, eventually, therapeutically in patients? What are some potential ethical issues associated with using this technology? Do the advantages of using this technology outweigh the disadvantages (or vice versa)? Explain your position.arrow_forward
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