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3 years ago

Which capacity makes living beings to adjust in hard environment

Biology

1 answer:

Allushta [10]3 years ago

4 0

Answer:

they are:

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In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb

Yuri [45]

Answer:

225 flies

Explanation:

Let gene for body colour : A

Let gene for eye type : B

Parent 1 : normal body and normal eyes = AABB

Parent 2: ebony body and eyeless = aabb

F1 : AABB X aabb = AaBb ( all have normal body and normal eye )

F1 progeny is self crossed given that the two genes are on different chromosomes which means they show independent assortment:

AaBb X AaBb =

A_B_ = normal body, normal eyes = 9

aaB_ = ebony body, normal eyes = 3

A_bb = normal body, eyeless = 3

aabb = ebony body, eyeless = 1

Hence the ratio is 9 : 3 : 3 : 1

Out of the 400 flies:

(9/16) * 400 = 225 flies have normal body colour and normal eyes

7 0

3 years ago

The idea that all living things are made up of cells is considered scientific law. This means the idea

Alex17521 [72]

This idea is the cell theory. :)

4 0

4 years ago

Read 2 more answers

What happens if there are no checkpoints in the cell cycle.

Slav-nsk [51]

Answer:

they may "loop out" of the cell cycle and into a resting state called G0, from which they may subsequently re-enter G1 under the appropriate conditions

Explanation:

At the G1 checkpoint, cells decide whether or not to proceed with division based on factors such as: Cell size

6 0

2 years ago

Where in the male reproductive system would you expect to find the most mature spermatozoa?

dezoksy [38]

The place you would find the most mature sepermatozoa in a male reproductive system would be (B). in the ductus deferens and ejaculartory duct

7 0

4 years ago

You have discovered a single celled organism that you have determined is in either Domain Archaea or Kingdom Fungi. What piece o

Nikolay [14]

Answer: The Cell structure.

Explanation: Most Archaeas don't have membrane-bound organelles, they are mostly unicellular prokaryotic organisms.

Archaea are found living alongside bacteria in many environments. Recently Archaea belongs to Crenarchaeota have been implicated in nitrogen cycling in the soil.

Fungi are eukaryotic multicellular organisms and they have membrane-bound organelles. they are hence more closely related to plants and animals than to bacteria or archaea. Like eukaryotes, Fungi has nuclei with chromosomes that contain DNA. They possess membrane-bound organelles such as mitochondria. Fungi are heterotrophs, and they are saprophytic, they feed on decaying matter. some fungi occur as unicellular organisms, they are generally referred to as yeasts.

6 0

3 years ago