WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
5th Edition
ISBN: 9781319516116
Author: PHELAN
Publisher: MAC HIGHER
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Question
Chapter 8, Problem 10SA
Summary Introduction
To analyze:
Why a healthy individual can survive with only one X chromosome but not with only one Y chromosome.
Introduction:
The X and Y chromosomes vary in the genes they carry.
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Students have asked these similar questions
Why is an X chromosome needed for survival?
The X chromosome has a lot of traits for things besides the traits we consider female. It carries traits forthings like the ability of your blood to clot correctly and the ability to see differences in the colors red andgreen. If you blood doesn’t clot correctly, it’s called Hemophilia. If you can’t see the difference betweenred and green, you are colorblind. Therefore, these are referred to as X-Linked or Sex-Linked Traits.Notice that those are on the X chromosome only. That means they are missing from the Y. In fact, the Y iscalled Y because it is physically missing a section at the end.
This means the Y chromosome is missing genes that the X chromosome has. If you are XY, you only haveone copy of the gene, or one allele.
Given what we just said above, can a XY parent pass a X-Linked Trait to his XY offspring?
If you are a male, your X chromosome has most likely been derived from:
your maternal grandfather only
your paternal or maternal grandfathers
your maternal grandfather or grandmother
your paternal grandfather only
Chapter 8 Solutions
WHAT IS LIFE? ACHIEVE 1 TERM ACCESS CODE
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A diploid fruitfly has 8 chromosomes. How many chromosomes are present in an individual with trisomy in Chromosome 1 and Chromosome 2? A person is born with two X chromosomes, trisomy 21 and two copies of other chromosomes. How many chromosomes are present in this individual? * A couple is planning to have three children. What is the probability of having all boys? *arrow_forwardWhich of the following statements is correct regarding the human X chromosomes? It is the same size as other chromosomes and has the same number of genes. It is present in every somatic cell of males and females. It carries genes that determine an individual's biological sex. It is referred to as an autosome.arrow_forwardIf the gene is linked to the "Y" chromosome, women will not have the disorder. Why?arrow_forward
- What are sex chromosomes? (answer in paragraph)arrow_forwardIf a woman is a carrier of a certain x linked disease and one of her X chromosomes is turned off in each cell how is it she doesn't have the disease?arrow_forwardThe inactivation of one of the X chromosomes forms a structure known as a(n): telomere centromere autosome Barr body A man who carries a dominant X-linked trait will pass this trait on to: all of his sons all of his daughters half of his daughters and half of his sons half of his daughters An individual possessing two copies of the same sex chromosomes is known as: Question 3 options: heterogametic homozygous diploid homogameticarrow_forward
- While working in the lab, you notice that your fruit flies all appear to have an intersex phenotype. This is most likely due to: O There being a 2:3 ratio of X chromosomes to autosomal chromosomes. O There being a 1:2 ratio of X chromosomes to autosomal chromosomes. O There being a 3:2 ratio of X chromosomes to autosomal chromosomes. O There being a 1:1 ratio of X chromosomes to autosomal chromosomes. O There being a 1:2 ratio of Y chromosomes to autosomal chromosomes.arrow_forwardb) The body cells of chickens have 78 chromosomes in their nuclei.(i) State the number of chromosomes found in each sex cell of a chicken.arrow_forwardWhat happens if you have an extra chromosome 23?arrow_forward
- This is the only combination of sex chromosomes that is lethal XXy (47) y-only (45) Xyy (47) X-only (45)arrow_forwardHemophilia in humans is due to an X-chromosome mutation. What will be the result of mating a hemophiliac female and male?arrow_forwardAlthough most tortoiseshell cats are female, a litter of kittens will occasionally contain a male tortoiseshell. Which of the following can explain tortoiseshell coat color in a male kitten? Please explain in detail. The male kitten has an extra Y chromosome The male kitten has an extra X chromosome The male kitten has no X chromosome The male kitten cannot carry out X-inactivationarrow_forward
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