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fredd
2 months ago
9

Blue whales have 44 chromosomes in every cell. determine how many chromosomes you would expect to find in the following:Sperm ce

ll:Egg Cell:Daughter Cell from Mitosis:Daughter Cell from Meiosis II:
Biology
2 answers:
Tresset [2.2K]2 months ago
6 0

Blue whales have 44 chromosomes in every cell. Accordingly, sperm and egg cells each have twenty-two chromosomes. A daughter cell formed from mitosis consists of forty-four chromosomes, while a daughter cell resulting from Meiosis II contains twenty-two chromosomes.

Additional Details:

A sperm cell comprises twenty-two chromosomes. Spermatozoa are notably smaller than ova and feature a flagellum for movement. Being haploid means it carries half of the chromosome count due to meiosis.

An egg cell holds twenty-two chromosomes. The egg serves as the reproductive cell produced by females. Similar to sperm, the egg is haploid, thereby having half the chromosomes, leading to a count of 22 instead of 44.

A daughter cell resulting from mitosis has forty-four chromosomes. Mitosis is the process ensuring the creation of cells that are identical to the original during asexual reproduction, maintaining the chromosome count without dividing it. It involves the division of a mother cell into two daughter cells that precisely inherit the same genetic material.

A daughter cell resulting from Meiosis II has twenty-two chromosomes. Meiosis is a distinctive division process where an initial cell with 2n chromosomes (for this example, 2n = 44) splits into four haploid daughter cells, each with n chromosomes (n = 22).

Learn more:

  1. Learn more about mitosis  
  2. Learn more about the menstrual cycle  
  3. Learn more about meiosis

Details of the Answer:

Grade: High School

Subject: Biology Chapter

: Cell Cycle

Keywords

:

Mitosis, meiosis, cell division, chromosome, twenty two, forty four, diploid, haploid, egg, sperm cell, half, identical, same, stage.

inysia [2.3K]2 months ago
4 0

Sperm Cell: Anticipated chromosome count is 22.

The sperm cell, measuring around 5 micrometers in diameter, is significantly smaller than the ovum and has a flagellum that is 60 micrometers long for movement. To enhance mobility and reach the egg swiftly, it reduces cytoplasm and packs its DNA tightly. The head features an acrosome packed with enzymes to aid in penetrating the egg's membrane.

As a haploid cell, it carries half the genetic material of the organism, which is lost during meiosis in the spermatogenesis occurring in the testes' seminiferous tubules.


Egg Cell: Expected to have 22 chromosomes.

The egg is the female-produced gamete in animals.

Like all gametes, the egg is haploid, thus containing half the chromosomal count of the future embryo, resulting in 22 chromosomes rather than 44. This egg will eventually combine with a sperm to create an embryo with 44 chromosomes.


Daughter Cell from Mitosis: Predicted number of chromosomes is 44.

Mitosis produces daughter cells identical to the parent cell during asexual reproduction, maintaining chromosome number without splitting it in half.

Mitosis is a type of asexual cell division, which replicates a mother cell into two genetically identical daughter cells.


Daughter Cell from Meiosis II: Expected chromosome count is 22.

Meiosis is a specialized cell division that transforms a diploid cell containing 2n chromosomes (here, 2n=44) into four haploid daughter cells with n chromosomes (n=22). This reproductive process occurs in the gonads to form gametes.

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Imagine that two unlinked autosomal genes with simple dominance code in goats for size, where T is tall and t is short, and for
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Explanation:

A

With the following:

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r indicates tan.

When a short tan male goat mates with a tall red female goat of an unknown genotype;

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A short tan male goat = ttrr

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the potential genotype probability of the female for each allele could be:

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the probability of the female being Rr = \frac{1}{2}

the probability of passing on the recessive allele 't' to offspring = \frac{1}{2}

the probability of passing on the recessive allele 'r' to offspring = \frac{1}{2}

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(B)

In pea plants, one is homozygous recessive for both traits, leading to the cross of Yy Rr × yy rr. Determine the green and round offspring percentage.

For Color, let:

Y = Yellow

y = Green

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R = Round

r = wrinkled

If a cross occurs between Yy Rr × yy rr. (yellow round and green wrinkled)

the ratio of green and round offspring will be;

If Yy Rr self-crosses; various traits (YR, Yr, yR, yr)

yy rr will produce (yr, yr)

                   YR                    Yr                    yR                    yr

yr                 YyRr                 Yyrr                 yyRr                 Yyrr

yr                 YyRr                 Yyrr                 yyRr                 Yyrr

                   Yellow              Yellow            Green              Green

                   Round               Wrinkled        Round              Wrinkled

                   Thus, the percentage of green and round offspring based on the above is:

=

%

\frac{2}{8}*100%=

%

\frac{1}{4}*100=

25%

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