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3 years ago

What is eophrynus prestvicii?

2 answers:

6 0

Eophrynus prestvicii is an extinct specie of arachnid belonging to the order Trigonotarbida. Its a spider-shape animal. Phylum is Arthropoda. Genus is Eophrynus.

hope this helps!!

Arada [10]3 years ago

5 0

It is a prehistoric bug that is mostly closely related to the arachnids of today. I lacks a spinneret though. It is one of the first trigonotarbids to ever be described. (It looks like a spiky tick. Seriously)

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Where does a 'thought' go when forgotten

forsale [732]

Answer:

It dont go anywhere because it never existed

Explanation:

its gone its gone

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3 years ago

Identify two structural differences between dna and rna.

Leona [35]

RNA Has Smaller Molecular mass (20,000 - 2,000,000) and DNA has Larger Molecular Mass 100,000 - 150,000,000). RNA can have Single or Double Helix, and DNA Always has Double Helix.

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3 years ago

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Explanation:

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3 years ago

What is used to trap light energy in plants?

nlexa [21]

Answer:

chlorophyll

Explanation:

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2 years ago

Read 2 more answers

In Drosophila, the bar mutant is characterized by eyes that are restricted to a narrow, vertical bar. When a bar female is mated

Lelechka [254]

Answer:

See the answer below

Explanation:

a) The mode of inheritance of the bar mutant is X-linked and dominant.

Assuming that barness is represented by the allele B.

Bar female = $X^BX^B$ or $X^BX^b$

Wild type male = $X^bY$

Bar female x wild type male:

$X^BX^B$ x $X^bY$

$X^BX^b$ $X^BY$ $X^BX^b$ $X^BY$

All of the F1 flies are bar because a single B allele is required for the trait to be expressed.

Bar male x wildtype female

$X^BY$ x $X^bX^b$

$X^BX^b$ $X^BX^b$ $X^bY$ $X^bY$

All the female offspring are barred while all the males are wildtype barred resulting in a 50/50 (857/905 is approximately 50/50) ratio of barred/wildtype offspring.

b) Genotypes of each of the cross above, including the parents and the F1 generations.

1. $X^BX^B$ x $X^bY$

$X^BX^b$ $X^BY$ $X^BX^b$ $X^BY$

2. $X^BY$ x $X^bX^b$

$X^BX^b$ $X^BX^b$ $X^bY$ $X^bY$

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3 years ago