Question

Part - A The ABO blood type gene is an autosomal gene on chromosome #9 with three common alleles: A, B, & O. If you have blood type AB, & you mate with someone with the same blood type & have 4 children, how many of your kids do you predict will have AB blood type as well? 0 1 2 3 4 Part - B The most common form of dwarfism in humans, achondroplasia, is an autosomal dominant disorder caused by the presence of a single faulty allele of a gene located on chromosome #4. If two heterozygotes for dwarfism have children, what proportion of their kids would you expect to be of typical size & NOT exhibit dwarfism? 1/8 1/4 3/8 1/2 3/4 Part - C A husband & wife both have normal color vision, although both of their fathers are red-green color blind. This form of color-blindness is an X-linked recessive disorder. What are the odds that this couple will have baby girls that are red-green color blind? 0% 25% 50% 75% 100% Part - D My blood phenotype is AB. Therefore, I am _____________ for the gene that controls my ABO blood type. dominant heterozygous homozygous polygenic haploid Part - E The ability to breakdown and excrete excess cholesterol from your body has a genetic basis. Our human genome contains a gene that codes for protein receptors on the surfaces of our liver cells that bind to low-density lipoprotein (LDL) molecules and remove this dangerous form of "bad" cholesterol from our bloodstreams. Therefore, much of the variation in people's cholesterol levels can be explained by which alleles for this gene they inherited. Homozygotes of the H allele (genotype = HH) tend to have healthy, low blood cholesterol concentrations. Heterozygotes (genotype = Hh) tend to have mild hypercholesterolemia due to elevated blood cholesterol concentrations. Homozygotes of the h allele (genotype = hh) tend to have severe hypercholesterolemia resulting from dangerously high blood cholesterol concentrations. Given the intermediate phenotype of heterozygotes, the two alleles for this gene clearly display which type of dominance? complete dominance, with the h allele dominant over the recessive H allele complete dominance, with the H allele dominant over the recessive h allele incomplete dominance codominance None of the above

Name: part a the abo blood type gene is an autosomal gene on chromosome 9 with three common alleles a b o if you have blood type ab you mate with someone with the same blood type have 4 children h 59508
Uploaded: 2023-03-12T19:00:41-08:00
Duration: 7 min 34 s
Channel: Bryan Valdivia
Description: part a the abo blood type gene is an autosomal gene on chromosome 9 with three common alleles a b o if you have blood type ab you mate with someone with the same blood type have 4 children h 59508

          Part - A
The ABO blood type gene is an autosomal gene on chromosome #9
with three common alleles: A, B, & O. If you have blood type
AB, & you mate with someone with the same blood type & have
4 children, how many of your kids do you predict will have AB blood
type as well?
0
1
2
3
4
Part - B
The most common form of dwarfism in humans, achondroplasia, is
an autosomal dominant disorder caused by the presence of a single
faulty allele of a gene located on chromosome #4. If two
heterozygotes for dwarfism have children, what proportion of their
kids would you expect to be of typical size & NOT exhibit
dwarfism?
1/8
1/4
3/8
1/2
3/4
Part - C
A husband & wife both have normal color vision, although
both of their fathers are red-green color blind. This form of
color-blindness is an X-linked recessive disorder. What are the
odds that this couple will have baby girls that are red-green color
blind?
0%
25%
50%
75%
100%
Part - D
My blood phenotype is AB. Therefore, I am _____________ for the
gene that controls my ABO blood type.
dominant
heterozygous
homozygous
polygenic
haploid
Part - E
The ability to breakdown and excrete excess cholesterol from
your body has a genetic basis. Our human genome contains a gene
that codes for protein receptors on the surfaces of our liver cells
that bind to low-density lipoprotein (LDL) molecules and remove
this dangerous form of "bad" cholesterol from our bloodstreams.
Therefore, much of the variation in people's cholesterol levels can
be explained by which alleles for this gene they inherited.
Homozygotes of the H allele (genotype = HH) tend to have healthy,
low blood cholesterol concentrations. Heterozygotes (genotype = Hh)
tend to have mild hypercholesterolemia due to elevated blood
cholesterol concentrations. Homozygotes of the h allele (genotype =
hh) tend to have severe hypercholesterolemia resulting from
dangerously high blood cholesterol concentrations. Given the
intermediate phenotype of heterozygotes, the two alleles for this
gene clearly display which type of dominance?
complete dominance, with the h allele dominant over the
recessive H allele
complete dominance, with the H allele dominant over the
recessive h allele
incomplete dominance
codominance
None of the above

Added by Jes-S H.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Bryan Valdivia

03/12/2023

Step 1

So, out of 4 children, we can predict that 2 of them will have AB blood type. Answer: 2 Part - B If two heterozygotes for dwarfism have children, their possible genotypes are DD (dominant homozygous), Dd (heterozygous), dD (heterozygous), and dd (recessive Show more…

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Part - A The ABO blood type gene is an autosomal gene on chromosome #9 with three common alleles: A, B, & O. If you have blood type AB, & you mate with someone with the same blood type & have 4 children, how many of your kids do you predict will have AB blood type as well? 0 1 2 3 4 Part - B The most common form of dwarfism in humans, achondroplasia, is an autosomal dominant disorder caused by the presence of a single faulty allele of a gene located on chromosome #4. If two heterozygotes for dwarfism have children, what proportion of their kids would you expect to be of typical size & NOT exhibit dwarfism? 1/8 1/4 3/8 1/2 3/4 Part - C A husband & wife both have normal color vision, although both of their fathers are red-green color blind. This form of color-blindness is an X-linked recessive disorder. What are the odds that this couple will have baby girls that are red-green color blind? 0% 25% 50% 75% 100% Part - D My blood phenotype is AB. Therefore, I am _____________ for the gene that controls my ABO blood type. dominant heterozygous homozygous polygenic haploid Part - E The ability to breakdown and excrete excess cholesterol from your body has a genetic basis. Our human genome contains a gene that codes for protein receptors on the surfaces of our liver cells that bind to low-density lipoprotein (LDL) molecules and remove this dangerous form of "bad" cholesterol from our bloodstreams. Therefore, much of the variation in people's cholesterol levels can be explained by which alleles for this gene they inherited. Homozygotes of the H allele (genotype = HH) tend to have healthy, low blood cholesterol concentrations. Heterozygotes (genotype = Hh) tend to have mild hypercholesterolemia due to elevated blood cholesterol concentrations. Homozygotes of the h allele (genotype = hh) tend to have severe hypercholesterolemia resulting from dangerously high blood cholesterol concentrations. Given the intermediate phenotype of heterozygotes, the two alleles for this gene clearly display which type of dominance? complete dominance, with the h allele dominant over the recessive H allele complete dominance, with the H allele dominant over the recessive h allele incomplete dominance codominance None of the above

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00:01 In the internet answered this question i talk about inheritans.

00:02 It says, the abo blood type gene is an autosomal gene on chromosome 9 with 3, hormone allele is the a, da b, and the o allele.

00:09 So it says, if you have blood type ab, and you made with someone with the same blood type and have four children, so you have the same cross practically, or this cross.

00:20 And it says, how many of your kids do you predict will have a -b blood type as well? so in this case, let's make up a square.

00:31 You get homozygot for a.

00:32 It means type a.

00:33 You get heterocygote for ab.

00:35 It means type ab for both of them and type b because this is homozygos for b.

00:40 So you have a total of four possibilities.

00:42 In order of the four possibilities, one and two are going to be for the heterocygoseose a .b.

00:47 It means type a .b.

00:48 Black.

00:49 And this is the same as one half.

00:50 So this is the proportion of the offspring from this cross that they're going to have type a .b.

00:56 But they are asking you how many of your children if you have four? do you predict that they're going to have the type a .b.

01:03 So in this case, they are not asking you for the frequency, but for the expected number.

01:08 So in this case, you have to multiply this frequency by the total number of kids that you have in this case four, and this is going to be equal to two.

01:16 So two of your children are expected to have type a, b, blood.

01:21 Now, the next question says, the most common form of dwarfism in humans, acondropresia is an autosomal dominant disorder caused by the presence of a single -foldial allele of a gene located on chromosome 4.

01:32 If two heterocygot for dwarfism have children, what proportion of the kids would you expect to be of typical size and not exhibit dwarfism? so in this case, it is a dominant condition.

01:46 It says, i'm going to sumal dominant.

01:47 So the homozygousous dog and the heterocygots are going to call for dwarfism and the homozygouselis is if it's going to be for normal.

01:58 So in this case, you're crossing, it says you're crossing two heterocygotes.

02:04 It means like this.

02:06 So let's make up a panel.

02:07 Square here you have a heterocygote with another heterocygous, you get homocygous domino, heterocygous, heterocygous, heterocygous, and homocygose.

02:18 So they are asking you what proportion of their kids would you expect to be of typical size? it means like this, normal.

02:26 And you have a total of four possibilities.

02:28 And one of the four possibilities, one is going to be homozygosis if it means normal.

02:32 So you have one quarter.

02:34 And this is the answer because they are asking you for the proportion.

02:37 And this is a proportion, okay? one quarter is the answer.

02:39 For this question option b then you have a part c okay part c says a husband and wife both have normal color vision also both of their fathers are green are green color blind so in this case the husband colorblind is an excellent excessive condition remember okay so the husband in this case is going to be let's just the vg okay so you have this is the excessive genotype for a man with with color blindness and you have the woman that has also normal color vision.

03:13 Oh, okay, it says that both of them have a normal vision.

03:18 So in this case, the man is like this, okay, and the woman is like this.

03:24 Because you don't know if the woman is homozygous dominant or heterocygous...

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