If you are conducting a monohybrid cross of tall (dominant) and dwarf (recessive) plants, the recessive trait in the F1 plants _____. 1. is always masked
2. appears in a ratio of 2:1
3. appears in a ratio of 3:1
4. appears in a ratio of 2:2

Answers

Answer 1
Answer:

Answer:

The correct answer would be 1. is always masked.

When homozygous or pure bred tall plant (TT) is crossed with homozygous dwarf or pure bred dwarf plant (tt), the offspring produced will always be heterozygus tall (Tt).

Thus, the recessive trait (t) dwarf is always masked by the dominant trait (T) tallness in F₁ generation.

Answer 2
Answer: The recessive trait in the F1 plants appears in a ratio of 3:1.

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Select the CORRECT statement about the pharynx. A. The palatine tonsils are embedded in the lateral walls of the nasopharynx.
B. The pharynx contains the vocal cords.
C. The pharyngeal tonsil is located in the laryngopharynx.
D. The auditory tube drains into the nasopharynx.

Answers

Answer:

D. The auditory tube drains into the nasopharynx.

Explanation:

The auditory tubes, commonly known as eustachian tubes have their pharyngeal openings in the lateral wall of the nasopharynx. Auditory tubes also prevent the mucus to enter the middle ear by channelizing it into the nasopharynx. This clearance of mucus does not allow any infection to spread to the middle ear.

Final answer:

The correct statement about the pharynx is that the auditory tube drains into the nasopharynx.

Explanation:

The correct statement about the pharynx is D. The auditory tube drains into the nasopharynx.

The palatine tonsils are actually embedded in the lateral walls of the oropharynx, not the nasopharynx. The pharynx contains the larynx, not the vocal cords. And the pharyngeal tonsil is located in the nasopharynx, not the laryngopharynx.

Learn more about Pharynx here:

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The vocal cords are two bands of tissue that extend across the opening of the: larynx
glottis
trachea
epiglottis

Answers

they stretch across the larynx

Electricity is added to recharge a battery. What is added to ADP to form ATP?A second ribose group
A third phosphate group
A third ribose group
A second phosphate group

I'm thinking third phosphate group?

Answers

Electricity is added to recharge a battery. A third phosphate group  is added to ADP to form ATP.

ATP or Adenosine triphosphate contains adenine, ribose and 3 phosphate groups.

ADP is converted to ATP by the following reaction:

ADP+Pi+energy⇄ATP

The analogy between battery and ATP can be explained as ATP is higher energy form and ADP is lower energy form like charged and uncharged form of the battery. When the terminal or third phosphate is removed from the ATP it becomes ADP and releases energy like a battery. The additional phosphate group when added to ADP forms the ATP molecule like the energy spent by the batteries are recharged by putting in additional energy. Here the additional energy is provided by the third phosphate group.

Answer:

The correct answer is B) A third phosphate group.                                

Explanation:

ATP is Adenosine Triphosphate and ADP is Adenosine Diphosphate.

ADP gets converted into ATP in presence of inorganic phosphate and energy, irrespective of whether the energy is obtained from sunlight or from certain exothermic reactions. ATP is converted into ADP, releasing energy and inorganic phosphate.

Cheers!

Through which conversion is energy released?a) ADP to ATP
b) ATP to ADP
c) NADP+ to NADPH
d) CO2 and H2O to C6H12O6 and O2

Answers

Answer: B) ATP to ADP

This reaction is termed as ATP hydrolysis.

ATP ( adenosine triphosphate) conversion to ADP ( adenosine diphosphate) is an energy producing reaction ( exothermic reaction). ATP contains high energy bonds called phosphoanhydride bonds. Thus, when this bond is broken down, ATP is converted to ADP and Pi ( inorganic phosphate) and  releases large amount of energy.

The answer is b) ATP to ADP. This is a method for our body to provide energy for reactions. While other three forms are energy absorbing which can conserve energy for our body.

Which of the following features differentiates sporozoans from the other phyla of protozoans?A. Sporozoans lack locomotor organs.




B. Sporozoan are parasitic.




C. Sporozoans are capable of sexual reproduction.

Answers

Answer A, they lack locomotor organs.

What is the main system political parties use to nominate candidates in the modern US political system?A. primary

B.caucus

C. general election

D. party appointment

Answers

I think the correct answer from the choices listed above is option A. The main system political parties that use to nominate candidates in the modern US political system is the primary system. In a primary the vote is cast by a secret ballot in order to decide the candidate of the party.