1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rasek [7]
2 years ago
14

What is crossing-over, during what phase does it occur, and what is its significance?

Biology
1 answer:
kondaur [170]2 years ago
4 0

Answer:

Crossing over is a biological occurrence that happens during meiosis when the paired homologs, or chromosomes of the same type, are lined up. Hope this helps :)

Explanation:

You might be interested in
Pls help its a semester final i only have till the 14 pls help
charle [14.2K]

Answer:

1)The lithosphere/geosphere

2)glaciers and polar ice caps

3)moves bits of rock and soil

4)through compaction and cementation

5)Metamorphic

6)crystalline structure

7)The area was covered by water

8)The layers have different ages with the youngest layers on top

9)temperature and pressure

10)convergent boundaries

11)motion of tectonic plates

12)by studying the direction of S and P waves

Explanation:

6 0
3 years ago
Which of the following statements is true?
baherus [9]

Answer:

Diffusion is the movement of water across a selectively permeable membrane.

Explanation:

Hope it helps.

8 0
3 years ago
Given a population of 100 individuals where 15 are AA, 25 are Aa, and 60 are aa, what is
nata0808 [166]

Answer:

frequency of allele “A” is .39

frequency of allele “a” is .77

Explanation:

hardy weinberg equation

p^2 + 2pq + q^2 = 1 or (A+a)^2

p^2 =  (AA)

2pq =  (Aa)

q^2 = (aa)

AA -> 15/100 = .15

Aa -> 25/100 = .25

aa -> 60/100 = .60

if p^2 = AA = .15 then A = √.15 = 0.38729833462 = .39

if q^2 = aa = .60 then a = √.60 = 0.77459666924 = .77

wikipedia quoraAnkitGauba

6 0
2 years ago
Help I need help thanks​
Veronika [31]

Answer:

1. Temporal

2. Ecological

3. Mechanical

4. Geographic

Explanation:

8 0
2 years ago
1. What process happens in the mitochondria?
slamgirl [31]

Answer: The process is called oxidative phosphorylation and it happens inside mitochondria.

Explanation:

5 0
3 years ago
Other questions:
  • Cultured mammalian cells grown in thymidine for many generations were allowed to undergo replication in the presence of bromodeo
    6·1 answer
  • Why is it necessary to re-circularize a plasmid prior to transformation into cells?
    7·1 answer
  • Which statement about water best illustrates the property of adhesion? water droplet found on a spider web in the morning water
    8·2 answers
  • 6. Ribosomes contain a mixture of ribosomal RNA (rRNA) and ribosomal proteins. In most cases, any particular rRNA or ribosomal p
    7·1 answer
  • How many of the following factors would affect the permeability of the cell membrane?
    7·1 answer
  • What percentage of offspring will have neurofibromatosis?
    5·1 answer
  • Do you think anything happened to the carrying capacity of the area from 1900 to 1940
    15·1 answer
  • Susana heats up a sample of red crystals. While the sample is being heated, a gas is released and a blue powder is left after th
    15·1 answer
  • Three students test the effect of fertilizer on bean plant
    12·2 answers
  • Why do saturated fatty acids have straight structures, while unsaturated fatty acids have bent structures?​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!