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Naya [18.7K]
3 years ago
6

Multiple sequences alignment of DNA or protein sequences allows us to determine evolutionary relationship.

Biology
1 answer:
Anon25 [30]3 years ago
6 0
A. True . Hope this helps you out
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Tamra is the goalie for her soccer team. The goalie blocks the ball from going into the net. She uses her brain, eyes, nerves, a
hammer [34]

Answer:

Her eyes send signals to the brain. Her brain gets the signal and sends another one through her nerves to her muscles. Her muscles then move her arm or leg toward the ball to try and block it.

Explanation:

Simple science. If I could help you, you are welcome. if I couldn't I'm sorry.

6 0
2 years ago
En el hombre el color negro de los ojos “A” domina sobre el color azul “a” Una pareja en la que el hombre tiene los ojos negros
umka21 [38]

Las respuestas a estas preguntas son:

a) Genotipo del padre Aa (ojos negros)

b) Cruzamiento: Aa (padre) x aa (madre)

c) Frecuencias genotípicas esperadas: 1/2 Aa; 1/2 aa  

En genética, dominancia completa se refiere al proceso  de herencia en la cual un individuo heterocigota, es decir, el individuo que presenta dos alelos diferentes para el mismo gen, presenta el mismo fenotipo que un individuo homo-cigota para el alelo dominante (el alelo dominante es aquel que enmascara la expresión del alelo recesivo en individuos heterocigotas).

En este caso, el carácter 'color de ojos' presenta un patrón de herencia monogénica, donde el alelo 'A' dominante codifica para el rasgo fenotípico ojos negros, mientras que el alelo 'a' recesivo codifica para el rasgo fenotípico ojos azules.  

En el ejemplo, la pareja tuvo progenie en la cual uno de los hijos presenta el rasgo recesivo ojos claros, con lo cual el padre debe ser heterocigota y poseer un alelo recesivo 'a'; mientras que la madre expresa el fenotipo recesivo y por lo tanto su genotipo es 'aa'. En consecuencia, el cruzamiento de un padre heterozigota 'Aa' con una madre homo-cigota recesivo 'aa' producirá una descendencia con una frecuencia genotípica esperada de 1/2 (50%) de hijos con ojos 'color negro' de genotipo Aa y 1/2 (50%) de hijos con ojos 'color celelste' de genotipo aa >>

Cruzamiento: Aa (padre) x aa (madre)

Gametos padre: 1/2 A; 1/2 a

Gametos madre: 100% a

Cuadro de Punett (combinaciones gaméticas):

                  A           a

a               Aa          aa

a               Aa          aa

En consecuencia,  este cruzamiento producirá 50% individuos ojos color negro (genotipo Aa) y 50% individuos con ojos color celelste (genotipo aa)

Podés encontrar más información sobre este tema en:

brainly.com/question/22398195?referrer=searchResults

7 0
2 years ago
In rheumatoid arthritis Group of answer choices articular cartilage is damaged and fibrous tissue invades. fibrous tissues ossif
ohaa [14]

Answer:

The correct answer is - all of the above.

Explanation:

Rheumatoid arthritis (RA) causes aggravation of the linning of the joints, particularly in the hands, knee, and fingers. Signs and side effects incorporate red, swollen, excruciating joints, and diminished flexibility and mobility. Articular cartilage is damaged and fibrous tissue invades

If left untreated, it can make extreme harm to the joints and serious complexities in the significant organs. In it, fibrous tissues ossify and bones fuse Rheumatoid joint inflammation is an immune system illness and osteoarthritis is brought about by impacts of maturing. The synovial membrane becomes inflamed and thickens, forming a mass.

The correct answer is - all of the above.

3 0
3 years ago
These are large compartments within some eukaryotic cells that capture and store food or toxic materials, maintain turgor pressu
mrs_skeptik [129]

Answer:

Vacuoles.

Explanation:

Eukaryotic cells contain well membrane bound nucleus. Their cell organelles are divided into structural and functional compartment by the endomembrane system.

The large compartment that maintains turgor pressure is vacuole. Vacuoles are generally present in plants and maintain the disposal of cellular waste and storage of toxic materials.

Thus, the answer is vacuole.

6 0
3 years ago
Read 2 more answers
Genetically modified organisms (GMOs) are organisms that have had their genetic code altered. Scientists use genetic modificatio
Eddi Din [679]

Answer:

The questions about GMO:

1. Which are the potential risks of GMO and consequences on human health?

2. Is GM foods safe?

3. How are GM foods regulated nationally?

4. What are the most common GM foods?

5. What further developments can be expected in the area of GMOs?

5 0
2 years ago
Read 2 more answers
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