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Alisiya [41]
3 years ago
13

Someone help pleasee

Biology
2 answers:
vaieri [72.5K]3 years ago
5 0

Answer: The 3rd one, answer C

valentina_108 [34]3 years ago
3 0

Answer: its c

Explanation: bc ik im right

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Lesch-Nyhan syndrome is an X-linked, recessive condition caused by mutation of the HPRT1 gene responsible for purine metabolism.
Elanso [62]

Answer:

B. The father did not contribute a sex chromosome to his daughter due to nondisjunction of the sex chromosomes. The daughter is XO and her only X chromosome came from her mother, who was a carrier.

A.The mother's X chromosomes failed to separate during meiosis, and the daughter inherited two X chromosomes with the Lesch-Nyhan mutation. The father contributed no sex chromosomes.

Explanation:

As seen in the question above, a little girl was diagnosed with Lesch-Nyhan syndrome, which is an X-linked recessive condition caused by a mutation in the HPRT1 gene responsible for purine metabolism.

The little girl's parents do not have the syndrome, and no one in the little girl's paternal family presented this syndrome, however, we know that the maternal grandfather of the little girl's mother had the syndrome, which means that it was the mother's genetic material that contributed to the development of the syndrome in the little girl. This was because the little girl did not receive any X chromosomes from her father, but she inherited the two X chromosomes from her mother that coded for the Lesch-Nyhan mutation. This happened because the mother's X chromosome disjuction did not occur during meiosis I.

As shown above, the father did not contribute any sex chromosomes to his daughter, which means that the daughter is XO and her only X chromosome came from her mother, who was a carrier.

3 0
3 years ago
After his stroke, brain slowly recovered function in his right arm. the property of the brain that supports learning and recover
dusya [7]

The correct answer is neuroplasticity.

Neuroplasticity or brain plasticity is the property of the brain to change. Neuroplasticity can be observed at different levels. For example, changes at the cell level can affect connections between neurons (synaptic plasticity), while non-synaptic plasticity refers to changes in the intrinsic part of the neuron. On the other hand, larger-scale changes are usually made by environmental stimuli. Emotions may cause neuroplastic change through activity-dependent plasticity, which is significant for the recovery from brain damage.

8 0
3 years ago
A ______ is an organism that eats other organisms to gain energy; it is also called _______.
worty [1.4K]

Answer:

1. consumer

2. heterotroph

3. producer

4. autotroph

5. decomposer

Explanation:

just got it right

8 0
3 years ago
Read 2 more answers
What do isobars represent on a weather map?
alisha [4.7K]
Isobars represent adjusted atmospheric pressure. This removes pressure discrepancies caused by the location's relation to sea level or altitude. Isobars are also adjusted when necessary so that they never cross or touch. Weather maps with isobars give pressure information at a glance. They also give an approximation of wind direction because wind moves from high-pressure areas to low-pressure areas as large air masses move through the pressure differential.
8 0
3 years ago
Consider a population of 919 individuals, in which a locus G/C determines the pigmentation in snow rabbits. GG and GC carriers s
mixas84 [53]

Answer:

Frequency of recessive allele 0.61

Explanation:

Given -

Total Population size = 919

Number of individual with recessive genotype = 341

Frequency of recessive genotype

\frac{341}{919} = 0.37

Frequency of recessive allele = \sqrt{0.37}  = 0.609 = 0.61

Hence, option C is correct

4 0
2 years ago
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