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Sergeu [11.5K]
2 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]2 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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Part B: Research (11 points) In part B you will be doing some research on desertification.
Goryan [66]
Okay so northern Africa and the Sahara desert is the best example of desertification.
2 ways humans have contributed to that is: 1) pastoral nomadism 2) little to no settlements to increase water supply 

how it impacted the environment: so now the environment there is sandy, only organisms adapted for those extreme environment can live there ex. camel, cactus, etc., 

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http://eden-foundation.org/project/desertif.html

https://www.sciencedaily.com/releases/2017/03/170314111320.htm


8 0
2 years ago
In the family tree below, people with the recessive trait of attached earlobes
Law Incorporation [45]

Answer:  D) it is a female with two recessive alleles

Explanation:

Since the shape is a circle, we know it is a female. Since the shape is shaded, we know the posses the recessive trait, meaning they must have two of it's alleles.

5 0
3 years ago
Read 2 more answers
For the following nitrogen base sequence, write the complimentary sequence on the line provided.
ch4aika [34]

Answer:

TAGGATCTT

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a - t

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5 0
3 years ago
Scientists studied reproduction in the New Zealand mud snail to answer the question, “Are there benefits to reproducing sexually
Elena-2011 [213]

Answer:

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Explanation:

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However, asexual reproduction produces more offspring, as it is usually a quicker method of reproduction. It also does not require the organisms to socialise to mate.

Sexual reproduction does not reduce the rate of mutation, which is influenced by environmental factors as well as the genome itself.

3 0
2 years ago
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Cross contamination means the transfer of pathogens from surface to another
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