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Marizza181 [45]
3 years ago
9

On a laboratory exam, a student is asked to determine if the cells under a microscope are plant cells or animal cells. What migh

t the student look for when making the observation
Biology
1 answer:
sattari [20]3 years ago
3 0
The student may look for a plant wall, because cell walls are present only in plant cells.
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Compare the two new strands of dna are they the same or different? why?
Leni [432]
The two new strands are different from each other ,both of them have only one strand from the original DNA and the other strand is complementary . eg if a strand has the following base pairs .. AACCGGT ( consider this as the strands)
                                                           TTGGCCA
now they are going to be seperated AACCGGT     TTGGCCA
                                                         TTGGCCT      AACCGGT
as u can see the two NEW strands formed are similar but NOT IDENTICAL to each other .
6 0
3 years ago
Read 2 more answers
which of the following are the building blocks of protein a. monosaccharides b.amino acids c.RNA d. starches
Crazy boy [7]
I doubt if the answer is aminoacids
5 0
3 years ago
4. PART B: Which quote from the text best supports the answer to
alex41 [277]

Answer:

C

Explanation:

.

5 0
2 years ago
Lesch-Nyhan syndrome is an X-linked, recessive condition caused by mutation of the HPRT1 gene responsible for purine metabolism.
Elanso [62]

Answer:

B. The father did not contribute a sex chromosome to his daughter due to nondisjunction of the sex chromosomes. The daughter is XO and her only X chromosome came from her mother, who was a carrier.

A.The mother's X chromosomes failed to separate during meiosis, and the daughter inherited two X chromosomes with the Lesch-Nyhan mutation. The father contributed no sex chromosomes.

Explanation:

As seen in the question above, a little girl was diagnosed with Lesch-Nyhan syndrome, which is an X-linked recessive condition caused by a mutation in the HPRT1 gene responsible for purine metabolism.

The little girl's parents do not have the syndrome, and no one in the little girl's paternal family presented this syndrome, however, we know that the maternal grandfather of the little girl's mother had the syndrome, which means that it was the mother's genetic material that contributed to the development of the syndrome in the little girl. This was because the little girl did not receive any X chromosomes from her father, but she inherited the two X chromosomes from her mother that coded for the Lesch-Nyhan mutation. This happened because the mother's X chromosome disjuction did not occur during meiosis I.

As shown above, the father did not contribute any sex chromosomes to his daughter, which means that the daughter is XO and her only X chromosome came from her mother, who was a carrier.

3 0
2 years ago
1. Explain how dehydration synthesis and<br> hydrolysis are related.
PolarNik [594]

<em>Answer: In dehydration synthesis reactions, a water molecule is formed as a result of generating a covalent bond between two monomeric components in a larger polymer. In hydrolysis reactions, a water molecule is consumed as a result of breaking the covalent bond holding together two components of a polymer.</em>

3 0
3 years ago
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