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anygoal [31]
3 years ago
15

Is it possible for a son to inherit an X chromosome from his father? Explain why or why not.

Biology
2 answers:
andreev551 [17]3 years ago
6 0
No because a father has the chromosomes of XY and a mother has the chromosomes of XX so i order for the offspring to be a male it must inherit the Y chromosome from the father and the X chromosome from the mother. if the offspring were to inherit the X chromosome from the father, the offspring would have to be a female.


hope that explains it well!!
mrs_skeptik [129]3 years ago
3 0

Answer:

No.

Explanation:

The mother gives an x chromosome or even 2 if there is a error in the transfer and the dad gives a y.

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When does the total number of chromosomes get reduced from 46 pairs to 23 individual chromosomes? View Available Hint(s) When do
ivann1987 [24]

Answer:

23 pairs of chromosomes (46 individual chromosomes) are redued to 23 individual chromosomes in meiosis I.

During Meiosis I

Explanation:

Meiosis is a type of cell division that results in four daughter cells with each having half the number of chromosomes as in the parent cell. During meiosis, cell division occurs twice because before the two halves of a duplicated chromosome (sister chromatids) is separated, it still needs to separate homologous pair of chromosomes, which is a similar but non-identical pair of chromosomes received from both parent. Hence, meiosis occurs in a two step division process; Meiosis I and Meiosis II.

Note that, a diploid cell contains 23 pairs of chromosomes ( 46 chromosomes in total). Each pair of chromosome is from the haploid gamete produced by each parent after meiosis.

Before going into meiosis I, the cell must first undergo growth and replicate its DNA in the interphase stage just like in mitosis. In the Prophase I of meiosis I, chromosomes condense as in mitosis but also pair up. Each chromosome aligns with its homologue pair to form a structure called TETRAD or BIVALENT.

Homologous pairs, not individual chromosomes (23 pairs in number) line up at the metaphase plate for separation during metaphase I.

In anaphase I, the homologues are pulled apart by the spindle fibres and move apart to opposite ends of the cell. The sister chromatids of each chromosome, however, remain attached to one another and don't come apart. Hence, the cell now has 23 chromosomes on one side of the cell, and another 23 on the other side.

After cytokinesis (division of the cytoplasm) in meiosis I, two daughter cells are produced and each now possesses 23 individual chromosomes (haploid) different from the parental 23 pairs (diploid).

N.B: Sister chromatids separate in the anaphase of meiosis II, where each chromatid is counted as an individual chromosome.

4 0
3 years ago
Which source of codis contains dna profiles from unsolved crime scene​ evidence?
user100 [1]

Answer;

-Forensic Index

Explanation;

-The Combined DNA Index System (CODIS) is an FBI-run database that blends forensic science and computer technology into a tool for solving violent crimes.

-CODIS enables Federal, State, and local crime labs to exchange and compare DNA profiles electronically, thereby linking crimes to each other and to convicted offenders.

-CODIS uses two indexes: the Convicted Offender Index, which contains profiles of convicted offenders, and the Forensic Index: which contains profiles from crime-scene evidence.

3 0
3 years ago
How many elements in nitrogen monoxide?
Veseljchak [2.6K]

Answer:

Two elements

Explanation:

Nitrogen and Oxygen only, (NO)

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They're called endorphins!
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When the solution contains the same number of particles as what’s in the cell ______________
Setler79 [48]

Answer:

isotonic solution

Explanation:

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