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Vinvika [58]
3 years ago
8

Please help me out???thx

Biology
1 answer:
densk [106]3 years ago
6 0
1. D
2. A
3. C
4. B
5. C
6. D
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(BRAILIIEST) Can someboody halp me with this
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Answer:

The answer you are looking for is B. The gravitational pull of the moon

Explanation:

The moon influences tides the most. The moon's gravitational pull on the earth is strong enough to tug the oceans into bulge

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Which statement is the most reasonable testable prediction for the hypothesis: All birds can fly?
goblinko [34]

Answer:

"Examine the list of all known species of birds and determine if any species cannot fly" would be the most reasonable answer.

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Jill is heterozygous for gene A and is going to have a child with Jack, who is homozygous recessive for gene A. Which of the fol
Igoryamba

Answer:

D. Aa

Explanation:

Given:

Jill (mother) is heterozygous for gene A --------- i.e Jill = Aa

Jack (father) who is homozygous recessive for gene A-------- i.e Jack = aa

Now if both cross and fertilization occurs, we have:

         A          a

a        Aa        aa

a        Aa        aa

The offsprings are (Aa, Aa, aa, aa)

Nondsijunction is the inability of homologous chromosomes to seperate properly during cell division. Now, we were told that this fertilization undergone nondisjunction in meiosis 1. Hence, both homologous chromosome move into the same daughter cells instead of different daughter cells because separation of homologous chromosome does not occur properly.

Therefore the result of these fertilization of a normal haploid sperm with an egg that had undergone nondisjunction in meiosis yields offspring with genotype Aa of their Mother (Jill).

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4 years ago
Which of the following instruments did scientists use to observe cells and formulate the cell theory?
Brilliant_brown [7]

The answer would be B) microscope

The first cell to ever be discovered was by Robert Hooke in 1665 using a microscope.

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A biology graduate student presented a seminar where he described an experiment in which two closely related Drosophila species
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In this case, the biology graduate have to select species-specific genes and then identify if they were expressed in RNA-seq data

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By RNA-seq it is possible to identify mRNAs specifically expressed between species since homologous species-specific genes may show single nucleotide polymorphisms (SNPs) among alleles with a biased gene expression

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