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3 years ago

Where is the nucleus located?

Biology

2 answers:

brilliants [131]3 years ago

7 0

In an animal cell, the nucleus is located in the central region of the cell.

Igoryamba3 years ago

4 0

Hey there!

The nucleus's location can vary depending on what type of living organism it is. In animal cells it is normally at the center, but in plant cells it might be at the periphery.

Hope this helps!

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denis23 [38]

Answer: research it? i dont know

Explanation:

4 0

3 years ago

3. In one population, 18 individuals have long hair and 182 individuals have short hair. It is known thatmating has been random

pishuonlain [190]

Answer: p (short hair) = 0.91 and q (long hair) = 0.09

Explanation: In the population, short hair is a feature of domnant allele, because there are more short haired individuals than with long hair. In genetics, p is the frequency for dominant allele and q is for recessive allele.

For this question, short hair is allele L and long hair is allele l

So, the frequency of short hair is p and of long hair is q.

To calculate the frequencies:

Frequency of allele L = (number of copies of allele L in population) / (total number of L/l gene copies in population)

p = 182/200 = 0.91

The same formula goes for the recessive allele, so:

q = 18/200 = 0.09

Thus, the frequencies of hair allele are 0.91 and 0.09 for short and long, respectively.

8 0

3 years ago

Contrast the genetic content and the origin of sister versus nonsister chromatids during their earliest appearance in prophase I

Bogdan [553]

Answer:

Sister chromatids are identical forms of chromatids of a chromosomes. They are mostly formed by semi-conservative replication of DNA molecule of a single chromosome.Thus they are like 'photocopies' of original parent chromosomes; joined together at the Centromere.

They are exactly similar in all ramification; with the same gene and allele compositions..

However; slight differences arise between the two identical sisters due to mutation from errors at replication;and also in the length of telomere repeats.

Non-sister chromatids are dissimilar forms of chromatids of a chromosomes formed when each half of a chromosome at fertilisation from separate haploid sex-cells, of each parent. fused.They contain different genetic composition;because they are not on the same homologous chromosomes.Therefore crossing -over ensure variation.

However, they are genetically similar in composition; if they are contained in homologous chromosomes. This is because Synapsis of bivalent of these chromosomes allow genetic material to be shared by chromosomal crossing-over between the non-sister chromatids on the chromosomes ; therefore identical genetic characteristics are shared .

Explanation:

7 0

3 years ago

A slower-than-normal heart rate is called __________.

MakcuM [25]

Answer:

B. bradycardia

Explanation:

Bradycardia, also known as slow heart rate, is usually slower than 60 beats per minute.

Hope this helps! :)

3 0

3 years ago

Semenov [28]

Produce energy usable by the cells of their respective organisms.

8 0

3 years ago

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