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Sergeu [11.5K]
3 years ago
9

How many different phenotypes are possible in the offspring of two parents with genotypes AA and aa, where A is the dominant all

ele for a trait and a is the recessive allele for the same trait? (1 point) one / two/ three/ four
Biology
1 answer:
densk [106]3 years ago
7 0
There is only 1 unique phenotype observed in the offspring. As all offspring produced would have the genotype of Aa. In which the characteristic for the dominant allele will be seen in all offspring. As all offspring are Aa. There is only 1 unique phenotype. Here based on the characteristic or phenotype expression of the dominant allele.
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Why would you learn less about an organism if it is were isolated from its surroundings than if you were able to observe the sam
Dahasolnce [82]

Answer:

this one`s been up for debate for awhile now.

1. it depends on the organism

learning about an organism could be considered 'easier' to study in different ways. for example, if you are studying marine life, you will most likely have to keep it in a water habitat to watch it alive. If you are studying a land species, then watching from it`s natural habitat will give you more accurate results. sometimes the environment can affect an organisms internal systems more than you may think. this leads into my second point.

2. it depends on what you are trying to study

if you are trying to learn about the mating process, seasonal activity, migration, or external behavior, then monitoring it from it`s natural habitat or an area that is a close copy is your best option. but if you are looking into studying internal organs/systems or cells, then in <em>most</em> cases, the organism will need to be taken out of its natural habitat. only in very careful situations is it left in a habitat during examination.

5 0
2 years ago
Is it possible to find the same gene in two different kinds of organisms but not find the protein that is produced from that gen
Bingel [31]
Yes, quite frankly it is possible to find a same gene if you're in the same class of species, but finding the protein....I believe that's impossible because in every type of gene, you have the same proteins that make you function the same way. Without them you wouldn't be able to function properly.

If I found the same gene in all organisms that I've tested, I would be intrigued because that would be a giant step in evolution. My reason for this answer is because if you have the same gene that would technically mean we all specifically came from the same species of animals.

No, that's not true because other characteristics would eventually help us in many things, studies would help us get our brain much stronger and the intelligence level would be extraordinary.
6 0
3 years ago
Lichens are composed of two organisms, a fungus
algol [13]

Answer:

B) ecological succession

Explanation:

The analogy given in this question describes ECOLOGICAL SUCCESSION, which is the series of changes that an ecosystem undergoes over a period of time. Ecological succession is of two types viz: Primary succession and Secondary succession.

Primary succession involves the series of changes that occurs on a new habitat that has never been previously colonized. This is the case of the colonization of bare rocks with no plant life by LICHENS. The action of the lichen, which involves secretion of acids that disintegrates the rocks into soil, paves way for the colonization of that area by new species.

Lichens, via the role they play in primary succession by helping alter a barren area into a fertile one that accommodates other organisms, makes them be regarded as PIONEERS of primary succession.

7 0
3 years ago
HELLPPPP ITS THE HIGHLIGHTED ONE
belka [17]

I think it would be the first ones with lower o2 because fish dont breathe oxygene

3 0
2 years ago
Read 2 more answers
Symbiotic relationships may evolve ?
Tpy6a [65]

Answer:

the last answer

Explanation:

over time by co-evolution of adaptations that reduce the harm or improve the benefit of the relationship

7 0
3 years ago
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