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KiRa [710]
3 years ago
5

Which describes vestigial structures and how they relate to evolution?

Biology
2 answers:
Bond [772]3 years ago
6 0

Answer:

apes

Explanation:

Andrews [41]3 years ago
4 0

Answer:

Snakes have tiny internal hind leg bones, indicating that they likely descended from lizards.

Explanation:

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Although the vast majority of women who inherit a single copy of an X-linked recessive disease allele are not affected by the di
Elina [12.6K]

Answer:

A and C

Explanation:

X-linked recessive diseases are disorders caused by a mutation on the X chromosome causes the phenotypic expression in males and only when it is homozygous for females.

A small percentage of women can display the disease phenotype on rare phenomenon such as;

  • X-inactivation that favors inactivation of the normal X chromosome  
  • Turner syndrome (a sex-chromosome aneuploidy in which women have only one X chromosome)
4 0
3 years ago
A summer squash plant that produces disc‑shaped fruit is crossed with a summer squash plant that produces long fruit. All of the
ivanzaharov [21]

Explanation:

In the given question,

suppose allele A and a determines the color of the fruit whereas allele B and b determines the shape of the fruit.

The genotype for white, disc shape fruits is- AABB

the genotype for yellow, long fruits is- aabb

F1 progeny will be- AABB x aabb

                                 AaBb

F2 cross-    AaBb    x    AaBb

                      AB          Ab          aB           ab

      AB        <em>AABB       AABb    AaBB       AaBb</em>

      Ab       <em>AABb       AAbb     AaBb       Aabb</em>

      aB      <em>  AaBB      AaBb      aaBB       aaBb</em>

      ab        <em>AaBb       Aabb      aaBb      aabb</em>

          The genotype of F2 cross are-

1.  9/16 A- B- disc-shaped (like F1)

2. 3/16 A- bb spherical

3. 3/16 aa B- spherical

4. 1/16 aa bb long.

       

7 0
3 years ago
The Order in which living things consume each other for food!!!
snow_tiger [21]

Possibly the Food Chain or the Food Web?

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3 years ago
A scientific theory _____.
gogolik [260]
I would have to say B


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3 years ago
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Definitely wake up your parents because you might have to get a blood transfusion. Tell them its an emergency
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