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Roman55 [17]
3 years ago
8

If we were to observe a cell in prophase and see 3 centromeres, how many chromatids are present?

Biology
1 answer:
4vir4ik [10]3 years ago
6 0

Answer:

The correct answer is - 6 chromatids.

Explanation:

Prophase is the stage in the cell cycle that is known for the condensation and disappearance of the nucleolus. In this stage chromosome become more compacts and the sister chromatids are still together and not separated. These sister chromatids are joined together with the centromere.

Centromere do not allow sister chromatids to move away and makes it intact. The number of centromere is the number of chromosme present in the prophase and half of the sister chromatids that means if there us 3 centromere than the number of sister chromatids will be 6.

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Which of the following is not a common teratogen? a. HIV infection b. SSRI antidepressant medications c. Folic acid d. Alcohol
poizon [28]

Option C

Folic acid  is not a common teratogen

<u>Explanation:</u>

Teratogen -  Any factor that can interrupt the growth of a fetus or embryo. Teratogens may generate a birth deformity in the child. Or a teratogen may terminate the pregnancy unmitigated. The aspects of teratogens include radiation, parental infections, drugs.

Alcohol exploitation can produce mental obstacles, distortion, germination obstacles, miscarriage, and behavioral complications in newborns. Women who have not taken the hepatitis B vaccine should be held for immunization if they are at danger of sexually dispatched disease or blood appearance. The vaccine may be administered during pregnancy. SSRI antidepressant medications is also a factor of teratogen to cause deformity to fetus growth.

6 0
3 years ago
Which of the following abilities is NOT a physical property of matter?
ExtremeBDS [4]

Answer:

Its B because if it reacted chemically it wouldn't be considered a physical property since its changing on the "inside"

4 0
3 years ago
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Which of the following is not true of the N terminal tail of these histones? The core histones are small, basic proteins that ha
Fynjy0 [20]

Answer:

The correct answer is option C. "It binds to DNA in a sequence-specific manner".

Explanation:

It is not true that histones bind to DNA in a sequence-specific manner. Histones and DNA have nonspecific bindings (occuring at any DNA sequence) given mostly by electrostatic interactions. DNA is a macromolecule that is highly negatively charged because of its phosphate residues, while histones are proteins that are highly positively charged because of its high content of positively charged amino acids. In consequence, the binding of histones and DNA occurs mostly in a nonspecific fashion given by electrostatic interactions.

4 0
3 years ago
What is water cycle?
Llana [10]

Answer:

the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

3 0
3 years ago
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Two autosomal genes control horn color in dragons. Pure-breeding gold-horned dragons were mated to pure-breeding silver-horned d
kirill [66]

Answer:

The correct option for the phenotypic ratio in this case is the following

9 : 6 : 1  

Explanation:

In order to calculate the ratio, divide the two larger numbers each by the smallest one - which here would be 17.

So, 147 ÷ 17 = 8.7 (rounded off to 9)

And 93 ÷ 17 = 5.6 (rounded off to 6)

This way, '17' is considered as 1. Hence,

Gold : silver : bronze

   9   :     6   :    1  

6 0
3 years ago
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