Viral infections can be cured with antibiotics t/f

1 answer:

5 0

Colds are viruses that you can only get once and can be cured with antibiotics while its preffered to wait it out and take vitamins your answer is true

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Helps scientist study our universe and galaxies.

qwelly [4]

Answer:

D.) both a and c

Explanation:

Past observations made early in history as well as telescopes and space probes are very important in studying our universe and galaxies.

Space probes are increasingly gaining momentum as technological and scientific advancements are being made.
Telescopes are used to see or picture objects that are very far away in space.
Also, understanding the past records and historical data is essential for the study of the universe.

Microscopes are not used in galactic studies. They are only used to study the world of micro-organisms.

5 0

2 years ago

A purebred tall pea plant is cross-pollinated with a tall, heterozygous pea plant. Use a Punnett square to determine the probabi

Ray Of Light [21]

Answer:

Explanation:

This question involves a gene coding for height in pea plants. The allele for tallness (T) is dominant over the allele for shortness (t). This means that allele T will be expressed over allele t in an heterozygous state.

A purebred tall plant will possess genotype: TT while a heterozygous tall plant will possess genotype: Tt. The two parents will produce the following gametes:

TT- T and T

Tt- T and t

Using these gametes in a punnet square (see attached image), the following offsprings with genotypes: TT and Tt in a ratio 1:1 will be produced.

TT offsprings are purebreed tall while Tt offsprings are heterozygous tall. Hence, based on the question, no offsprings of this cross will possess the recessive genotype (tt). This means that 0% of the offsprings of this cross will be short.