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ivanzaharov [21]
2 years ago
14

When a double helix of dna is replicated, two complete helices are formed. together, these helices are called sister __________?

Biology
1 answer:
Degger [83]2 years ago
6 0
Chromitids is the correct answer
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A Xw+m+Xwm female was mated to a XwmY male. Out of 1000 total F1 progeny there were 230 flies that were otherwise wild type with
deff fn [24]
In order to calculate the distance between two alleles/genes that are found in the same chromosome, we need to know how often crossing-over happened (recombination frequency). We know from the text that white eyes were linked to miniature wings and that wild type eyes were linked to wild type wings, so any phenotype that's contrary to these parent combinations are a result of crossing-over. We know then that 230 flies + 240 flies were a result of such recombination. To calculate the recombination frequency we only need to divide these flies (total of recombinant flies) by the total of flies in the offspring and turn it into percentage.
\frac{230+240}{1000}=0.47
0.47*100%=47%
47 map units is the distance between the genes <span>for eye color and wing length.</span>
7 0
2 years ago
Which are potential sources of error in the experiment? Check all that apply. estimating temperature to the nearest tenth of a d
Dafna11 [192]

The correct option are as follows:

estimating temperature to the nearest tenth of a degree

estimating the mass of the sample to the nearest tenth of a gram

the position of the cups of sand and water under the heat lamp

<u>Explanation:</u>

Error is an uncertainty or the amount of deviation in a physical quantity. There may arise some deviance while measuring physical quantity due to approximation.

Instrumental, environmental, procedural, and human are some of the common sources of error. The error can be classified into two types:

i) Random error

ii) Systematic error

Types of error are determined based on the deviation in the result. While observing the temperature of something, the temperature should be noted to the nearest tenth of a degree. In similar way, the mass of the sample should be estimated to the nearest tenth of a gram.

7 0
2 years ago
Read 2 more answers
A 5th grade friend has seen a picture of your child and ask you to explain how kids get their traits from their parents. Using t
never [62]

Answer: Kids get their traits genetically from their parents. Their parents pass down genes that give their kids similar traits to their parents. Depending on which genes are dominant in the family, the kid will inherit those traits.

7 0
1 year ago
The DNA in a cell's nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well
Rainbow [258]

Answer:

PFK: cytoplasm

insulin: ER--> Golgi--> outside cell

Explanation:

As described in the question, the enzyme phosphofructokinase (PFK) functions is a cells cytoplasm. Enzymes are proteins and proteins are made in the ribosomes of a cell. As ribosomes are present in the cytoplasm, hence PFK once made in the ribosomes will be released into the cytoplasm.

As for insulin, it will be made in the ribosomes. from there, it will move to the Endoplasmic Reticulum for packaging. Then to the Golgi complex for modifications and further packaging. Only after these stages, it will be ready to move out from where it is produces to areas where it has to be used.

6 0
2 years ago
The side chain of glutamic acid is an organic acid. Which statement BEST explains the charge of this glutamic acid side chain wh
fiasKO [112]
I think it’s .c I’m not sure
7 0
2 years ago
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