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Nesterboy [21]
3 years ago
10

This mineral is composed only of one element, carbon. It is listed as the hardest on MOHs scale of hardness. Which mineral is th

is? A. Diamond B gold C Gypsum D quartz
Biology
2 answers:
Allisa [31]3 years ago
8 0

Answer:

a

Explanation:

Svetach [21]3 years ago
6 0

Answer:

the answer is a

Explanation:

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What would happen to the water if you stopped the motion of the bucket while it was turned upside-down?
11111nata11111 [884]

The water would come out the bucket in one direction which is downwards

4 0
3 years ago
A new human species was found on a distant planet, whose genetic inheritance and process of reproduction is identical to that of
Vedmedyk [2.9K]

Answer:

  1. E/e ; T/t  ⇒ Square eyes and long tail (Option D)
  2. 3/16 will have round eyes and long tails (Option C)
  3. 1/4 of the progeny will be heterozygous for both traits (Option A)

Explanation:

<u>Available data</u>:

  • Two diallelic unlinked genes
  • Gene E controls eye shape: Dominant allele E expresses square eyes, and recessive allele e expresses round eyes.
  • Gene T controls the tail size. Dominant allele T expresses long trail, and recessive allele t expresses short tail.

<u>Genotypes                                          Phenotypes</u>

EETT, EeTT, EETt, EeTt                     Square eyes and Long tail

eeTT, eeTt                                          Round eyes and Long tail

EEtt, Eett                                             Square eyes and Short tail

eett                                                      Rounf eyes and short tail.

<em>1. An individual of this new species is heterozygous for gene E and heterozygous for gene T. What is their genotype and phenotype?</em>

The heterozygous individual is E/e ; T/t, expressing square eyes and a long tail.

<em>2. Two individuals, who are both heterozygous for eye shape and tail size, mate. Which of the following is a correct statement about the phenotype ratios expected for their offspring?</em>

Cross: between two heterozygous individuals

Parentals) EeTt    x     EeTt

Gametes) ET, Et, eT, et

                ET, Et, eT, et

Punnett square)  .   ET        Et        eT       et

                  ET     EETT    EETt    EeTT    EeTt

                  Et      EETt     EEtt     EeTt      Eett

                  eT    EeTT    EeTt    eeTT     eeTt

                   et     EeTt      Eett     eeTt      eett

F1) Genotype:

  • 1/16 EETT
  • 2/16 EETt
  • 1/16 EEtt
  • 2/16 EeTT
  • 4/16 EeTt ⇒ 1/4 EeTt
  • 2/16 Eett
  • 1/16 eeTT
  • 2/16 eeTt
  • 1/16 eett

      Phenotype

  • 9/16 E-T-, Square eyes and Long tails
  • 3/16 E-tt, Square eyes and short tails
  • 3/16 eeT-, Round eyes and Long tails
  • 1/16 eett, round eyes and short tail

Phenotypic ratio 9:3:3:1

<em>3. From the mating described in question ABOVE, what proportion of ALL of the offspring in will be heterozygous for both traits?</em>

4/16 = 1/4 = 25% of the progeny are expected to be heterozygous for both traits, EeTt.

7 0
3 years ago
What happens when a person who is allergic to ragweed encounters ragweed?
slava [35]
Ragweed antigens bind ragweed and then bind mast cells which release histamine 

<span>Allergies develop because of a Th2 response against the allergen. </span>

5 0
3 years ago
The opening through which magma flows through a volcano to the Earth’s surface is a caldera. true or false
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The answer is true. This is because well it is, Mate.
3 0
3 years ago
Suppose your eyes are exposed to a microorganism, what is the first thing you should do?
Viktor [21]

If your eyes are exposed to a microorganism, the first thing you should do is to <u>Flush your eyes with water for at least 10-15 minutes. </u>

<u />

  • Proper eyelid cleanliness stops the bacterial buildup that leads to blepharitis and the potential for Demodex.
  • Maintaining clean eyelids and lashes is also essential for safeguarding the many glands that line our eyelids and aid in the production of our tears.
  • To allow the fluid to move across the eye, someone should flush their eye for 10 to 15 minutes while attempting to keep their eyes open.
  • Some chemicals, such strong alkalis, may call for 60 minutes of flushing.
  • When flushing the eye, one should make sure there are no chemicals or debris under the eyelid by looking around. They might want to get medical help after flushing.

learn more about eyes here: brainly.com/question/1688036

#SPJ4

<u />

8 0
1 year ago
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