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Pani-rosa [81]
2 years ago
15

Plslslla help hshshshah

Biology
1 answer:
Anni [7]2 years ago
8 0

Answer:

First learn English oh oh oh oh thug life

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Marfan syndrome is a dominant trait. A cross between a homozygous dominant and a heterozygote would produce what phenotypic rati
umka2103 [35]

Answer:

The correct answer is- 4:0

Explanation:

Marfan syndrome is a genetic problem which affects the connective tissue in the body. The trait for this disease is autosomal dominant which means even one abnormal copy of this gene in the offspring or individual is sufficient to cause this syndrome.

Let S is the allele that is dominant for this syndrome and s is recessive. So if a cross between homozygous dominant(SS) and heterozygous individual (Ss) occurs than all the offspring would have this syndrome.  

                                   S      s

                              S  SS   Ss

                              S  SS   Ss

Therefore all 4 offspring would have at least one dominant allele which is sufficient to cause this syndrome. So the phenotype ratio would be 4:0.

                       

3 0
3 years ago
Which two types of surface on earth are most important for absorbing solar energy and keeping the planet warm?Explain you answer
Ede4ka [16]
The answer is Forests and Oceans. Both of them occupy most of Earth's surface, Reflects the least amount of sun, and absorbs a lot of the sun's energy due to photosynthesis and photosynthetic organisms.
5 0
3 years ago
Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractu
IRISSAK [1]

Answer:

A) Calcitonin injection

Explanation:

Parafollicular cells or C-cells of the thyroid gland produce a hormone which is involved in the regulation of calcium levels in the blood. This hormone is Calcitonin. It works in an antagonistic manner with the Parathyroid hormone (PTH). Calcitonin decreases the calcium level in the blood by increasing absorption of calcium ions in bones. In osteoporosis, when the patient is given the injection of hormone calcitonin, it produces and increase in bone mass because it negatively affects the rate of absorption of bone by the osteoclasts.

5 0
3 years ago
1. If you increase the force on a box, it will have
d1i1m1o1n [39]

Answer: More speed

Explanation: If you increase the force on a box it will have a greater acceleration.

***If you found my answer helpful, please give me the brainliest. :) ***

6 0
2 years ago
What ways is the cell cycle controlled in an organism? What happens if the cell cycle is not controlled?
AfilCa [17]

Through phosphorylation, Cdks signal the cell that it is ready to pass into the next stage of the cell cycle. As their name suggests, Cyclin-Dependent Protein Kinases are dependent on cyclins, another class of regulatory proteins. Cyclins bind to Cdks, activating the Cdks to phosphorylate other molecules.

8 0
3 years ago
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