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Nina [5.8K]
3 years ago
8

Is this correct...? I need help..

Biology
1 answer:
Brilliant_brown [7]3 years ago
7 0
Yes, it is! Good Job! :)
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How hydrogen bond related to water polarity?
Nikolay [14]

Answer:

The two hydrogen atoms and one oxygen atom within water molecules (H2O) form polar covalent bonds. ... As a result of water's polarity, each water molecule attracts other water molecules because of the opposite charges between them, forming hydrogen bonds

3 0
2 years ago
A strain of a cereal grain can be either dark tan, medium-dark tan, medium tan, light tan, or cream colored. When a dark tan and
denis-greek [22]

Answer:

The correct answer is - 2 genes.

Explanation:

The number of genes involved in the coloration of the strain of cereal grain, could be either dark tan, medium-dark tan, medium tan, light tan, or cream-colored if all F1 are medium tan when crossed a dark tan crossed with cream-colored, can be calculated as follow:

suppose there are only two gene - TT dominant over tt and CC dominant over cc

then the cross would be - RRCC - rrcc

gametes - RC and rc

Cross F1: RrCc

Self cross in F2:

offspring by Punnet cross are:

RRCC  -->1/16  

RRCc,  RrCC .---> 4/16

RrCc, RRcc, rrCC--->6/16

rrCc, Rrcc--->4/16

rrcc ----> 1/16

thus, the correct answer is 2 genes

6 0
2 years ago
Which cross could produce a child with blood type A?
Strike441 [17]

Answer:

d. Ao x oo

Explanation:

The other crosses with A would all result in complete dominance because the alleles (other than A) from the other parent are dominant. Because option D. crosses a h o m o zygous parent with a recessive trait, the cross could produce a child with blood type A.

8 0
3 years ago
Read 2 more answers
An element is defined as a substance that
meriva

Answer:

an element is a pure substance which can not be spilt into simpler substances by chemical means

Explanation:

examples hydrogen, oxygen, copper

3 0
3 years ago
which type of cell division (mitosis v meiosis) increases the likelihood of variation with a species? explain how it happens?
kipiarov [429]
Meiosis Bc it is genetic variation and ends with 4 cells with a completely different genetic make up whole mitosis is the cell division of identical cells. It ends with two daughter cells.
5 0
3 years ago
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