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3 years ago

What is the product of meiosis I?

Biology

1 answer:

Valentin [98]3 years ago

8 0

Answer:

Meiosis I, a reductional division of two haploid cells produces offspring cells that are not genetically identical with the event of recombination. Haploid girl cells have half the original/parent cell chromosomes.

Explanation:

meiosis II, an equational or mitotic division, divides the haploid cells created in meiosis I to produce four identical daughter cells that ultimately form the male/female gametes (egg/sperm).

Here chromatids split in contrast to meiosis I when homologous chromosomes apart.

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Name the predominant fatty acid in each of the vegetable oil samples

Alex Ar [27]

Answer: Name the predominant fatty acid in each of the vegetable oil are given below:

1) The predominant fatty acid in groundnut oil is oleic acid. Its percentage in the groundnut oil is 46.8% on weight basis.

2)The predominant fatty acid in coconut oil is lauric acid acid. Its percentage in the coconut oil is 47 - 49% on weight basis.

3)The predominant fatty acid in palm oil is palmitic acid. Its percentage in the palm oil is 44% on weight basis.

5 0

3 years ago

Which of the following are all part of the sun’s atmosphere?

nydimaria [60]

C: Photosphere ,corona ,chromosphere.

4 0

3 years ago

The length of giraffes' necks enables them to reach leaves that most other herbivores can reach. If a giraffe is born with a ver

ZanzabumX [31]

Natural selection. The trait that is unfavorable to the baby giraffe's survival will cause the death of giraffes with that specific gene that is responsible for a short neck vs a long neck. Natural selection causes traits that help the survival of the species will be carried throughout generations while unfavorable traits will be lost.

5 0

3 years ago

Now that you have come up with an equation that describes the relationship between amounts of different nucleotide bases in DNA,

Elza [17]

Answer:

The correct answer will be- 21, 29, 29

Explanation:

In a DNA sequence, the nucleotide base pairs on one strand of DNA are complementary to the base pair on other strand of DNA.

According to the Chargaff rule, Adenine binds Thymine and Cytosine binds Guanosine which shows that the amount of A will equal T and the amount of G will equal C.

Therefore, when the amount of C is 21%, then the amount of G will be 21%.

To find amount of AT= 100-GC

AT= 100-42

AT= 58%

So, AT/2= 29% each

Thus, A=T= 29%

G=C=21%

5 0

3 years ago

You measure levels of Ca2+ in various locations within a motor neuron and a skeletal muscle fiber when the motor neuron is NOT d

gogolik [260]

Answer:

The correct answer is 3: "High levels of Ca2+ are expected to be found within the sarcoplasmic reticulum".

Explanation:

Muscular contraction is a highly regulated process that depends on free calcium concentration in the cytoplasm. Amounts of cytoplasmic calcium are regulated by sarcoplasmic reticulum that functions as a storage of the ion.

When a nerve impulse reaches the membrane of a muscle fiber, through acetylcholine release, the membrane depolarizes producing the entrance of calcium from extracellular space. The impulse is transmitted along the membrane to the sarcoplasmic reticulum, from where calcium is released. At this point, tropomyosin is obstructing binding sites for myosin on the thin filament. The calcium channel in the sarcoplasmic reticulum controls the ion release, that activates and regulates muscle contraction, by increasing its cytoplasmic levels. When calcium binds to the troponin C, the troponin T alters the tropomyosin by moving it and then unblocks the binding sites, making possible the formation of cross-bridges between actin and myosin filaments. When myosin binds to the uncovered actin-binding sites, ATP is transformed into ADP and inorganic phosphate.

Z-bands are then pulled toward each other, thus shortening the sarcomere and the I-band, and producing muscle fiber contraction.

4 0

3 years ago