All categories

3 years ago

Each chromatid within a chromosome contains the same set of genes. true each chromosome contains both dna and protein

Biology

2 answers:

atroni [7]3 years ago

4 0

* The first statement is true.

Chromatid is a DNA molecule (the nucleofilament) associated with histone proteins and non-histone proteins. A chromatide has the shape of a rod that can have different degrees of condensation depending on the times of the cell cycle or the transcription activity of the genes.

This structural unit appears as a chromosome only during cellular divisions (mitosis or meiosis). The rest of the time, all chromatids form chromatin.

Each chromosome of a cell may consist of one or two chromatids depending on its state: just after a mitosis, or after the second meiotic division, each chromosome consists of only one chromatid, the rest of the time, after DNA replication, each chromosome consists of two completely identical chromatids, connected by the centromere, thus giving the two rods the shape of an X.

* The second statement is True

In its common definition the chromosome consists of one (or more) molecule of DNA, histones and non-histone proteins, disregarding its degree of condensation.

In its most scientifically rigorous definition, a chromosome is a fully condensed structure of chromatin. In this definition, the chromosome is only present during mitosis, more precisely during the metaphase where it takes the name metaphase chromosome (it is during the metaphase that it reaches its maximum degree of condensation).

Rasek [7]3 years ago

4 0

The sister chromatids of a chromosome contains same set of genes.

Further Explanation:

Cell cycle refers to the sequence of event that takes place whenever the cell is going to divide. These events have to be highly regulated so that the daughter cells formed should have proper cell constituents in the cell.

The cell cycle has the following phases:

1. Interphase- Gap 1, Synthesis phase, Gap 2 phase.

2. M-phase- Mitosis/ Meiosis phase

During the interphase the cell prepares itself for the division to occur. There are also certain checkpoints present in this phase that restricts the cell to proceed further for the next phase until and unless the previous phase has not completed properly.

M-phase is the phase where the chromosomal separation occurs and which is distributed to the daughter cells.A chromosomes consists of sister chromatids that has same set of genes while the non-sister chromatids contains same set of genes but different alleles of gene.

M-phase has different sub stages. They are:

1. Prophase

2. Metaphase

3. Anaphase

4. Telophase

In the end the cytokinesis occurs and the parent cell divides and give rise to the daughter cell.

Learn more:

1. Learn more about cell brainly.com/question/1233693

2. Learn more about DNA replication brainly.com/question/1600165

3. Learn more about meiosis brainly.com/question/94813

Answer Details:

Grade: College Biology

Subject: Biology

Chapter: The cell cycle

Keywords:

Cell cycle, interphase, Gap 1, Synthesis phase, Gap 2 phase, M-phase, mitosis, meiosis, prophase, metaphase, anaphase, telophase, cytokinesis.

You might be interested in

One method for separating polypeptides utilizes their different solubilities. The solubility of large polypeptides in water depe

Otrada [13]

Answer:

Polypeptides are composed of amino acids, and we know amino acids are differently charged, have different R groups, and also have different isoelectric points. Depending on different isoelectric points and charged groups, the polypeptides can be separated and because a protein has its lowest solubility on its isoelectric point.

So in this question,

(a) (Lys-Ala)3 ; this is highly positively charged (polar) at pH 7 than (Gly)20 which is uncharged except for the amino and carboxyl terminal.

(b) (Glu)20 ; it is highly negatively charged at pH 7 whereas (Phe-Met)3 is much less polar and hence less soluble.

(c) (Asn-Ser-His)5 ; at pH 3, because in (Ala-Asp-Gly)5 the carboxylate groups of Asp residues are partially protonated and neutral, whereas in (Asn-Ser-His)5 , the imidazole groups of His residues are fully protonated and positively charged.

(d) (Asn-Ser-His)5; at pH 6.0; both polymers have polar Ser sidechains, but (Asn-Ser-His)5 also has the polar Asn side chains and partially protonated His side chains.

Explanation:

3 0

3 years ago

WHY DID THIS HAPPEN I WAS AT 86.5% SOMEONE TALK TO ME AND MAKE ME HAPPY AGAIN :(

elena55 [62]

Answer:

it seems maybe you didnt turn in an assignment or late ?

Explanation:

7 0

3 years ago

Read 2 more answers

WILL MARK BRAINLIEST!!!

Salsk061 [2.6K]

Answer:

i hope this answers your q

It will produce greenhouse gases, which pollute drinking water.

4 0

3 years ago

The diagram below illustrates a biochemical process that occurs in organisms. The active site is represented by letter____, whil

tester [92]

The diagram below illustrates a biochemical process that occurs in organisms. The active site is represented by the letter B, while the products are represented by the letter E. so the correct option is - C. B and E

In this diagram, there is a biochemical reaction is shown which is catalyzed by the enzyme.

Enzymes are biological catalysts that are proteins in nature that help speed up biochemical reactions such as metabolic reactions in organisms.
Enzymes bind to substrate molecules with the help of the active site.
The active site of enzymes is like specific grooves or sites where substrate molecules bind and form an enzyme-substrate complex in the reaction.
Active sites alter the substrate molecules and form product molecules at the end of the reaction.

Thus, the correct option is - C. B and E.

Learn more about enzymes:

brainly.com/question/21248499

5 0

3 years ago

What are the characteristics of scientific explanation

yanalaym [24]

A scientific theory is a well-substantiated explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation.

5 0

3 years ago