True or false energy in an atom can be absorbed or released only in quanta of energy

In corn, small pollen (sp) is recessive to normal pollen (sp+) and banded necrotic tissue, called zebra necrotic (zn), s ssive t

alex41 [277]

Answer:

Option B

Explanation:

Please see the attached image

Given -

Allele for small pollen is "sp"

Allele for normal pollen is "sp+"

and "sp+" is dominant over "sp"

Allele for zebra necrotic tissue is "zn"

Allele for normal necrotic tissue is "zn+"

and "zn+" is dominant over "zn"

Cross is carried out between

sp+ sp zn+ zn x sp+ sp zn+ zn

The gametes of the parent cells are -

sp+ zn+, sp+zn, spzn+, spzn

The cross would be as follows

sp+ zn+ sp+zn spzn+ spzn

sp+ zn+ sp+ sp+ zn+ zn+sp+ sp+ zn+ znsp+ sp zn+ zn+ sp+ spzn+ zn

sp+zn sp+ sp+ zn+ znsp+ sp+ zn znsp+ sp zn+ zn sp+ sp zn zn

spzn+ sp+ sp zn+ zn+sp+ sp zn+ znsp sp zn+ zn+ sp sp zn+ zn

spzn sp+ sp zn+ zn sp+ sp zn zn sp sp zn+ zn sp sp zn zn

Hence, option B is correct

7 0

3 years ago

The bacterium Bacillus anthracis, which causes anthrax, has been developed as a biological warfare agent.

stiv31 [10]

The correct answer to this question is letter B.its ability to form endospores in harsh conditions

The bacterium Bacillus anthracis, which causes anthrax, has been developed as a biological warfare agent. The ability that could have led to this is that its ability to form endospores in harsh conditions

Anthrax usually form endospores in non-bacteria friendly environments, meaning they could get into places that would otherwise be hygienic and infect individuals.

5 0

3 years ago

Which is a characteristic of all vertebrates?

Bond [772]

The presence of vertebral column or notochord at any stage of life in any organism is the characteristic of vertebrate.

Explanation:

An animal is vertebrate if it fulfils the following criteria:

Presence of vertebral column or notochord.

Presence of endoskeleton or backbone.

The spinal cord runs above the vertebral column.

Humans embryo has notochord which becomes a vertebral column.

The alimentary canals end in the anus.

Mouth is present ta the anterior side of the vertebrate.

Have legs, fins or wings for movement.

Presence of a nervous system and sensory organs.

Presence of skin, lungs or gills.

Presence of a circulatory system.

Vertebrates include fish, amphibians, reptiles, birds and mammals.

6 0

3 years ago

Need help! The horizontal and vertical lines on a graph. The x is horizontal and the y is vertical.

timofeeve [1]

Answer:

X is horizantal and Y is vertical

Explanation:

4 0

2 years ago

Read 2 more answers

What function do chloroplasts perform

Scilla [17]

Answer:

Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Chloroplasts capture light energy from the sun to produce the free energy stored in ATP and NADPH through a process called photosynthesis.

Explanation:

8 0

3 years ago