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UkoKoshka [18]
3 years ago
6

An advantage of using cell models when studying cells is that the cell models-

Biology
1 answer:
Setler [38]3 years ago
4 0

Answer:

The answer is H

Explanation:

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Apart from salary what other factors are considered before doing any work.​
Flura [38]

Answer:

smartness, working capabilities

stress taking abilities and most importantly personality.

Explanation:

I have answered as per my knowledge.

hope it helps ypu

3 0
4 years ago
Read 2 more answers
Describe how fertilization contributes to this genetic variability
Anarel [89]
<h2>Genetic variability </h2>

Explanation:

  • Sexual reproduction results in infinite possibilities of genetic variation or one can say sexual reproduction results in offspring that are genetically unique, they differ from both parents and also from each other
  • This occurs through a number of mechanisms, including crossing-over, the independent assortment of chromosomes during anaphase I and fertilization
  • With fertilization, more possibilities for genetic variation exist between any two people
  • Sexual reproduction is the random fertilization of a gamete from the female using a gamete from the male
  • In humans there are over 8 million (2^{23}) chromosome combinations which exist in the production of gametes in both the male and female
  • When the homologous pairs of chromosomes line up during metaphase I and then are separated at anaphase I, there are 2^{23}possible combinations of maternal and paternal chromosomes
  • During random fertilization, a sperm cell, with over 8 million possible chromosome combinations, fertilizes an egg cell, which also has over 8 million possible chromosome combinations
  • Together there are over 64 trillion unique combinations
  • Each human couple could produce a child with over 64 trillion unique chromosome combinations
  • Mitosis and meiosis are two types of cell division, with dramatically different products
  • Mitosis begins with a diploid somatic cell and ends with two genetically identical diploid cells whereas meiosis begins with a diploid cell and produces four haploid genetically unique cells that form gametes
8 0
4 years ago
What is the source of oxygen in the epipelagic zone ?
Crank

-~90% of atmospheric oxygen is produced in the photic zone -Seasonal turnover leads to consistent oxygen levels --Phytoplankton, algae, photosynthetic organisms produce oxygen --Highly oxygen-rich, but nutrient-poor water.....:)
7 0
3 years ago
Read 2 more answers
I need help this is Cells<br> Which structure is it?? <br> A<br> B<br> C<br> D
never [62]
The answer is I need help this cells which structure is it ? answer: the a,b,c,d

7 0
2 years ago
In dragons the allele for purple skin, P, is dominant over the allele for gray skin, and the allele for fire-breathing, F, is do
Kitty [74]

Answer:

PpFf and ppff

Explanation:

Gray skin and smoke breathing are recessive traits so to get expressed their recessive alleles should be present in two copies. Thus the parent with gray skin and smoke breathing traits has the genotype ppff.

Parent with purple skin and fire breathing trait can be PPFF, PpFF, PPFf or PpFf. Since they are dominant traits, only one allele is enough to produce the phenotype. However the resultant progeny has all type of trait combinations present. Along with the dominant variants, recessive variants can also be observed. Recessive genotype progeny will only occur when one of the parents is heterozygous since it receives one recessive allele from the homozygous recessive parent and other recessive allele from the heterozygous parent.

Thus, parent with dominant traits has the genotype PpFf.

6 0
3 years ago
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