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Harlamova29_29 [7]
3 years ago
14

Does anyone know what this is I’m being timed so help me quickly and I’ll give you brainliest

Biology
1 answer:
azamat3 years ago
8 0

Answer:

number 4 is D

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Both Duchenne muscular dystrophy and color blindness are caused by recessive alleles. DMD, unlike color blindness, nearly always
Ronch [10]

Answer: Although both are X-linked recessive conditions, and therefore more likely in males, with the single X-chromosome. The recessive allele in colour blindness occurs at a higher frequency in the population and is a mild condition. Thus colour blindness does occur to a lesser extent in females because it needs the double recessive condition. DMD is a severe, disabling condition with a limited lifespan, and recessive allele frequency much lower, so the double recessive condition in females is very rare.

Explanation: DMD is an X-linked recessive, “nearly always in males” suggest that it also occurs due to a new mutation or some rare condition e.g. double recessive from an affected father and carrier mother, or inactivation of the normal gene in a heterozygote. It is also found that the defective allele is not completely recessive and that female carriers may exhibit mild to moderate effects.

colour blindness is polygenic, although the genes are all X-linked. It is more common in males than females. Females can carry two recessive alleles and so express the phenotype, but this is uncommon because the frequency of the recessive gene is low.

There are similarities in that both are X-linked recessives, therefore commonly expressed in males, who only have one X chromosome. The gene frequency of the colour blindness recessive is much higher than that of DMD, so the double recessive condition, which affects females, is more likely to be seen with colour blindness. In addition, DMD is a severe condition associated with disability and limited lifespan, which reduces the probability of mating between an affected male and carrier female

6 0
2 years ago
What stores the code for the order of amino acid for each protein?
saveliy_v [14]
<span>The DNA Codons is the answer to your question</span>
6 0
3 years ago
Which best describes chromosomal dilatation
AVprozaik [17]

Answer:Changes that affect the structure of chromosomes can cause problems with growth, development, and function of the body's systems. These changes can affect many genes along the chromosome and disrupt the proteins made from those genes.

Structural changes can occur during the formation of egg or sperm cells, in early fetal development, or in any cell after birth. Pieces of DNA can be rearranged within one chromosome or transferred between two or more chromosomes. The effects of structural changes depend on their size and location, whether gene function is interrupted, and whether any genetic material is gained or lost. Some changes cause health problems, while others may have no effect on a person's health.

Explanation: took the test

5 0
2 years ago
so I’m a 5’1 teenage girl, (almost 15) and I️ weigh 118. Is this a healthy weight for my size or am I overweight?
Lera25 [3.4K]

This info provided seems to be that you are of a healthy weight

4 0
3 years ago
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To maintain homeostasis what must follow the chemical decomposition of food for energy production?
Nastasia [14]
<span>A. removal of wastes</span>
7 0
3 years ago
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