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jasenka [17]
3 years ago
7

1. Which of the following is NOT a primary mineral?

Biology
1 answer:
Margaret [11]3 years ago
7 0

Answer:

1. mica 2. structure 3. ehorizon 4.

You might be interested in
Which organelles of a cell possess their own DNA?
Tanzania [10]
The Chloroplast possess their own DNA. This organelle has green orpiment called Chlorophyll. 
8 0
3 years ago
Sustancia formada por ADN y proteínas histonas que integra los cromosomas
Sauron [17]

Answer:

La cromatina

Explanation:

La cromatina es una sustancia dentro de un cromosoma que consta de ADN y proteína. El ADN lleva las instrucciones genéticas de la célula. Las principales proteínas de la cromatina son las histonas, que ayudan a empaquetar el ADN en una forma compacta que encaja en el núcleo celular.

La cromatina es un complejo altamente organizado de ADN y proteínas y es un componente principal del núcleo celular. Las proteínas histonas ayudan a organizar el ADN en unidades estructurales llamadas nucleosomas, que luego se ensamblan en una estructura compacta (cromatina) y, finalmente, en estructuras muy grandes de orden superior (cromosomas).

8 0
3 years ago
Thalidomide and l-dopa, shown below, are examples of pharmaceutical drugs that occur as enantiomers, or molecules that _____.
klemol [59]

Answer;

-are mirror images of one another.

Thalidomide and l-dopa, shown below, are examples of pharmaceutical drugs that occur as enantiomers, or molecules that are mirror images of one another

Explanation;

-Enantiomers are chiral molecules that are mirror images of one another. Furthermore, the molecules are non-superimposable on one another. This means that the molecules cannot be placed on top of one another and give the same molecule. Chiral molecules with one or more stereocenters can be enantiomers.

Enantiomers have identical chemical and physical properties in an achiral environment. They rotate the direction of plane polarized light to equal, but opposite angles and interact with other chiral molecules differently.

4 0
3 years ago
Chromosomes are found in the (i)__________ of every living cell. They can be seen by (ii)__________ a cell that is about to (iii
rusak2 [61]

Answer:

Explanation:

i) nucleus

ii) mitosis

iii) split

iv) pairs

v) number

vi) 46

vii) 23

viii) 7

ix) 127

x) arm

7 0
2 years ago
What macromolecule is made up of nucleus acids?
Salsk061 [2.6K]

Answer:

The correct answer to the question above is letter c. DNA is a macromolecule.

6 0
3 years ago
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