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Anastaziya [24]
3 years ago
8

Arthropods have an exoskeleton made of _____.

Biology
2 answers:
jarptica [38.1K]3 years ago
6 0
Arthropods have an exoskeleton made of " CHITIN "
Ksivusya [100]3 years ago
5 0
 <span>Arthropods have an exoskeleton made of chitin. </span>
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Which is an advantage of using embryonic stem cells instead of adult stem cells to help a patient?
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quicker recovery period for limitless injuries and surgeries

Explanation:

its correct

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2 years ago
How can radial symmetry be a benefit to an animal?
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No clue is this for sci
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Which term best describes this step of the investigate process
rewona [7]

Answer:

experiment

Explanation:

7 0
2 years ago
The red kernel color in wheat is caused by the presence of at least one dominant allelefrom each of two independently segregatin
BlackZzzverrR [31]

Answer:

100% red kernel color

Explanation:

R_B_ = Red kernel color

R_bb and rrB_ = yellow kernel color

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<em>The expected phenotype of the F1 plant is 100% red kernel color.</em>

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7 0
3 years ago
Interestingly, even though hemophilia in the royal families began in England, they were actually the only one of these four fami
Alex Ar [27]

Answer:

<h2>Alice's daughter Alix =X X*   </h2><h2>George V= XY </h2><h2>Progeny  are;</h2><h2>XX, XY, X*X, X*Y </h2><h2>50 % males would be  infected </h2><h2>50% male normal</h2><h2>50% female normal, </h2><h2>50 female carrier. </h2>

Explanation:

Hemophilia is an inherited disease and it follows  an X-linked recessive pattern. The genes for hemophilia disease are located on the X chromosome. In males one mutated copy of the chromosome X  is sufficient to cause the condition, because male contain only one gene. Female  contain XX chromosome, so both the chromosome must have mutated for causing this disease.

According to  study of  Queen Victoria (1891-1901) of England, Alice's daughter Alix was X linked carrier and George V was normal male,

so if they got married, their children would be  

parents genotype  X X*   XY

progeny  

XX, XY, X*X, X*Y

50% males would be  infected

50% male normal

50% female normal,

50 female carrier.

6 0
3 years ago
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