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mixer [17]
3 years ago
15

Key features that distinguish eukaryotic genomes from prokaryotic genomes include (select all that apply): Group of answer choic

es as a rule, eukaryotic genomes contain large fractions of non-protein coding DNA sequence. eukaryotic genes rarely contain introns. in eukaryotes, what constitutes a gene at the molecular level is difficult to define. eukaryotic genomes contain "satellite" DNA composed of various types of repetitive elements.
Biology
1 answer:
posledela3 years ago
3 0

Answer:

1. Eukaryotic genomes contain large fractions of non-protein coding DNA sequence.

2. Eukaryotic genomes contain "satellite" DNA composed of various types of repetitive elements.

Explanation:

The genome of the eukaryotes and prokaryotes are very different. The eukaryotic genome is much larger as compared to the prokaryotic genome.

The eukaryotic genome is largely due to the presence of some sequence which does not code for any protein called introns and a large amount of sequence which continuously repeats itself in the genome called satellite DNA.

The eukaryotic genome when condenses, it forms an X-shaped called chromosomes whereas the prokaryotic genome is circular and thus is called circular chromosomes.

Thus, the selected option is correct.

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Nucleus and chorlophlast

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How do decomposition and synthesis reactions work
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6 0
3 years ago
In cattle, RR = red, Rr = roan, and rr = white. What are the predicted color phenotypes for the offspring from crosses between:
timofeeve [1]

Answer:

a) 100% roan

b) 50% red, 50% roan

c) 50% roan, 25% red, 25% white

Explanation:

a) A red bull has the phenotype RR, a white cow has the phenotype rr. Let's do a punnett square. In its gametes, the bull only has R alleles to pass on, and the cow only has r alleles to pass on:

                               Bull

                        R               R

                r      <em>Rr             Rr</em>

Cow    

               r      <em> </em><em>Rr             Rr</em>

The offspring can only be Rr, so all of them will be roan. (100% roan).

b) A red bull has the phenotype RR, a roan cow has the phenotype Rr. Let's do a punnett square. In its gametes, the bull only has R alleles to pass on, and the cow has an R allele and an r allele to pass on:

                               Bull

                        R               R

               R      <em>RR            RR</em>

Cow    

               r      <em> </em><em>Rr             Rr</em>

<em />

50% of the offspring will be RR, and 50% will be Rr. So half of the offspring will be red, and half will be roan.

c) A roan bull has the phenotype Rr, a roan cow has the phenotype Rr. Let's do a punnett square. In its gametes, the bull has an R allele and an r allele to pass on, and the cow also has an R allele and an r allele to pass on:

                               Bull

                        R               r

               R      <em>RR            Rr</em>

Cow    

               r      <em> </em><em>Rr             rr</em>

<em />

25% of the offspring will be RR, 50% will be Rr, and 25% will be rr. So half of the offspring will be roan, a quarter will be red, (RR), and a quarter will be white (rr)

6 0
3 years ago
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