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Advocard [28]
2 years ago
15

Need help............................

Biology
1 answer:
Sophie [7]2 years ago
3 0

Answer:

D. X is eukaryotic and Y is prokaryotic

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In garden peas, long stems are dominant to short stems, and yellow seeds are dominants to green seeds, too long/yellow pea plant
Lera25 [3.4K]

Answer:

A) 300

B) 3:1

C) 9 long yellow : 3 long green : 3 short yellow : 1 short green

Explanation:

Long stems (L_) are dominant to short stems (ll)

Yellow seeds (Y_) are dominant to green seeds (yy)

We interbred pea plants with long stems and yellow seeds (L_Y_), but they had a short green parent (llyy) that could have only produced <em>ly</em> gametes, so our plants are heterozygous <em>LlYy</em>.

C) We interbred them LlYy x LlYy. If the two genes are unlinked, this is a typical dihybrid cross and from Mendel's law of independent assortment we know that the offspring will have the following phenotypic ratios:

  • 9/16 L_Y_ (Long, yellow)
  • 3/16 L_yy (Long, green)
  • 3/16 llY_ (short, yellow)
  • 1/16 llyy (short, green)

A) 3/16 × 1600 = 300 plants will be long and green.

B)

9/16 + 3/16 = 12/16= 3/4 plants will be yellow;

3/16 + 1/16 = 4/16= 1/4 plants will be green.

The ratio will be 3 yellow : 1 green

6 0
3 years ago
Replication is called semiconservative because half of the strand is
photoshop1234 [79]

Answer: Replication is called semiconservative because each of the original strand is is used as a template for the synthesis of a new strand

Explanation: DNA is a double-stranded helix containing two antiparallel strands that are complementary to each other.

Replication is the process of making identical copies of a DNA molecule. Before replication begins, the double-stranded DNA is first unwound by helicase so that each strand will serve as a template for new strand synthesis.

DNA replication is semiconservative because each DNA strand serves as a template for the synthesis of a new strand, producing two new DNA molecules each one with one new strand and one strand.

Saved and used in the new strand

8 0
3 years ago
22) Which hormone increases osteoclast activity to release more calcium ions into the
solmaris [256]
<span> parathyroid hormone (PTH) </span><span>increases osteoclast activity to release more calcium ions into the bloodstream.

In short, Your Answer would be Option C

Hope this helps!</span>
4 0
3 years ago
Data about our past climates is contained in...
ipn [44]

D. ice core samples for the arctic and anarctic

6 0
3 years ago
Read 2 more answers
One of the most important rain forest predators, attacking a wide range of different primates, is the monkey-eating eagle. We kn
posledela

one of the most important rain forest predators, attacking a wide range of different primates, is the monkey-eating eagle. we know this because all forest primates have an identical alarm call that means, essentially, "Eagle!"

<h3>What are primates?</h3>

Primates are those forest animals that has highly developed brain and backbone.

Some of them are predators while others are source of food for predators known as preys.

Example of such predators are the monkey eating eagles which are capable of hunting monkeys as their preys.

Learn more about predators here:

brainly.com/question/26286956

#SPJ1

8 0
1 year ago
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