1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vlad1618 [11]
3 years ago
15

Anyone good at Biology could you give me a helping hand please!

Biology
1 answer:
andriy [413]3 years ago
4 0
1. Anaphase. In <span>Anaphase the sister chromatids separate from each other to the opposite sides of the cells.

2. </span>Chromosomes would not separate into two nuclei. <span>Mitosis is a process cell division, where one cell divides into two identical cells.
</span>
3. Metaphase I. <span>Meiosis prophase I is the phase in which chromosomal crossing over occurs. The phase after prophase I is metaphase I.

4. </span>Its body cells would have 36 chromosomes, and its gametes would have 18 chromosomes. <span>In the gametes, there are half of the number of chromosomes present in the body cell.

5. </span><span>A species has to adjust rapidly to a changing environment. To adjust to the environment, crossing over is necessary, and it does not occur in mitosis, but meiosis.

6. 50 percent. 
Parents:          Yy      x     yy
Offspring:    Yy    Yy    yy   yy
50 % is Yy  and 50% is yy.

7. </span><span>One parent had white eyes and the other was heterozygous for eye color. The ratio in the offspring is 50-50. The only possibility is the following:
Parents:       Rr     x     rr
Offspring   Rr    Rr   Rr   Rr

8. </span><span>Their fur will be a mixture of red and white hairs. The offspring will be heterozygous. They will have alleles for both red and white hairs and both will be expressed.
</span>
9. Not enough information.

10. <span>Both of the parents' genotype must have been Pp. The genotype of the white plant is pp since it is recessive:
Parents:        Pp     x     Pp
Offspring:   PP   Pp   Pp   pp
One of the four is white.</span>

You might be interested in
Why is it important for organisms to be able to adapt to changes in abiotic factors?
Margaret [11]
If they didn't adapt, they couldn't survive in the changed environment.
Because abiotic factors determine the kind of organisms that are able to live in certain conditions.
8 0
3 years ago
Predict the most likely outcome of culturing transformed E. coli in the presence of tetracycline.Justify your prediction.
My name is Ann [436]

Answer:

E.coli is a bacterium which is preffered for transformation due to its rapid growth and high efficiency of introduction of DNA molecules into cells.

Tetracycline is an antibiotic used to treat several infections such as cholera, plague, brucellosis, and malaria etcetra.

Plasmid is a small, extrachromosomal DNA molecule present in cell which is seprated from chromosomal DNA and have ability to replicate independently.

When a plasmid resistant to tetracycline and kanamycine is inserted into E.coli, the process is called transformation. E.coli might not be able to survive due to absence of plasmid but the transformed strains having antibiotic tetracycline and kanamycine will probably be able to survive it.

Hence, the culture of bacteria carrying plasmid will be able to survive only.

4 0
3 years ago
How are the west flowing rivers different from the east flowing rivers
Kazeer [188]
Is this just in general or in a certain area?
8 0
3 years ago
Which of the following types of skeletal material is NOT found in at least some sponges?
Mazyrski [523]

Answer:

b. muscle

Explanation:

The Sponges usually known as Porifera (pore bearers) are aquatic filter feeders. The sponges consist of structural materials (spongin, spicules) which are usually made of calcium carbonate and/or silica. These structures forms their skeletal materials giving their body a thin sheet of cells over a frame (skeleton). As invetebrate and at the unicellular level of organization, Sponges lack muscle.

8 0
3 years ago
Any condition of unusual deposits of black pigment in different parts of the body is known as ____
lara31 [8.8K]
Any condition of unusual deposits of black pigment in different parts of the body is known as melanosis.
This condition is a form of hyperpigmentation that is associated with increased melanin. Hyperpigmentation, which is manifested as darkening on the skin, can be caused by sun damage, inflammation, or skin injuries. <span>There are different types of melanosis such as Melanism, ocular melanosis, smoker's melanosis, oral melanosis, Riehl melanosis.</span>
6 0
3 years ago
Other questions:
  • The restriction enzymes of bacteria protect the bacteria from successful attack by bacteriophages, whose genomes can be degraded
    11·1 answer
  • What is turgor pressure, what causes it, and what does it do for a plant?
    7·2 answers
  • Every year a rice farmer collects his crops and burns the soil when he is done once the soil is enriched with debris he replants
    11·1 answer
  • Enzymes work best at?
    15·2 answers
  • How do liver and the pancreas aid in the digestive process?
    10·1 answer
  • What effect does climate have on parent material?
    8·1 answer
  • A homozygous red flower is crossed with a homozygous white-flowered what are the expected phenotypes of The offspring
    7·1 answer
  • What is responsible for the red tide phenomenon? It is a phenomenon that usually coincides with storm surges; the name comes fro
    15·1 answer
  • )) If deer are not hunted legally every season, a potential result is(1 point)
    14·1 answer
  • Can you please tell me an explanation of what happens during the prophase stage of mitosis?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!