BIOLOGY HIGH SCHOOL

The sequence of a chromosome can be represented by ABCD@EFGH, where the @ symbol represents the centromere. Which of the following below best describe the chromosomes that shows an inversion in this chromosome?A. ABCD@EGH
B. ACBD@EFGH
C. ABBCD@EGH
D. ABZCD@EFGH

Answers

Answer 1
Answer: B. ACBD@EFGH
Inversion is when the segments of a chromosome are rearranged and put in reverse order. This is visible in the transition from ABCD... to ACBD...

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A biologist collects DNA samples from two sisters. The younger sister has blond hair. The older sister has red hair. The sisters have different traits because their DNA contains different —A---order of nucleotides
B---types of sugar molecules
C---sized phosphate groups
D---types of nitrogenous bases
PLZ ANSWER IF U ARE ONLY SMART AT THIS STUFF

Answers

The sisters have different traits because their DNA contains different ORDER OF NUCLEOTIDES (Option A).

DNA is a double helix composed of two long chains of nucleotides.

In DNA, there are four types of nucleotides, each containing one different nitrogenous base, i.e., Adenine, Guanine, Thymine and Cytosine.

During gene transcription, a fragment of DNA called gene is used as template to create an mRNA, which is in turn used as template to create a protein.

The order of nucleotides in a given gene sequence determines the sequence in mRNA and ultimately also the protein sequence that's synthesized from this sequence.

In conclusion, the sisters have different traits because their DNA contains different ORDER OF NUCLEOTIDES (Option A).

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the answer is D hope this help

Double fertilization results in the formation of select one:a. two diploid embryos and a haploid endosperm.
b. one diploid embryo and a triploid endosperm.
c. two diploid embryos.
d. one diploid embryo and a diploid endosperm.
e. two diploid embryos and a diploid seed coat.

Answers

Double fertilization results in the formation of  one diploid embryo and a triploid endosperm. Double fertilization is characterized by the formation of two embryos; the embryo proper which is diploid and the fusion product of the central cell with one male gamete which is triploid. This secondary triploid zygote develops into the endosperm. 

Plants produce which of the following as waste products?carbon dioxide and oxygen
carbon dioxide and uric acid
oxygen and urine
carbon dioxide and urine

Answers

The correct answer is option A

Plants performs both the functions photosynthesis and cellular respiration.The waste product of photosynthesis is oxygen that the plant releases in the environment.

Plants also performs cellular respiration and in the process of cellular respiration the waste product is carbon dioxide.

Hence, the waste products are carbon dioxide and oxygen.
The correct answer is carbon dioxide and oxygen

A point mutation will cause the cell to make an incomplete polypeptide if the mutation results in a stop codon. Is this true or false

Answers

True - if there is a mutation in the genetic code that causes a stop codon then the rest of the code will not be read and translated, resulting in an incomplete polypeptide

The loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain

Answers

Answer:

true

Explanation:

i just took the test.
YES BECAUSE THE BOTTOM OF THE FOOD CHAIN IS THE PRODUCER AND  THAT IS THE GRASS AND THE ORGANISM THAT EAT THE GRASS  WOULD DIE  BECAUSE THAT ORGANISM WOULDNT BE ABLE TO EAT AND THEN THE SAME THING WILL HAPPEN TO THE OTHERS.

Who developed a new system for classifying plants and animals?

Answers

Answer:

Carl Linnaeus
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