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Sidana [21]
3 years ago
5

Are spores formed by the fern sporophyte formed by meiosis or mitosis

Biology
1 answer:
Novosadov [1.4K]3 years ago
8 0
It's formed by meiosis.
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How do mountain barriers modify rainfall patterns on Hawaii's Big Island and island of Maui?
Iteru [2.4K]

The explanation is given below

<u>Explanation:</u>

Hawaii's Big Island:

Mountain barriers play a significant role in modifying the air masses and topography affects the distribution of precipitation.

The orographic effect takes place on Hawaii's Big Island (i.e) the rising air makes the windward side of the mountains rainy and leeward side of the mountains dry.

Island of Maui:

In the Island of Maui, the high mean of rainfall is found on the windward side of the mountain slopes and the low mean of rainfall is found on the leeward lowlands and on upper slopes of the highest mountains.

6 0
3 years ago
a pea plant that has round seeds has the genotype Rr. it is crossed with a pea plant that has wrinkled seeds and the genotype Rr
san4es73 [151]
50% because both are the same Genotyle dominant wise and recessive wise so it will have a fifty fifty chance of having wrinkled seeds
6 0
3 years ago
Read 2 more answers
If b is dominant over b, list the offspring that will exhibit or show the dominant trait.
Lelechka [254]

Answer:

if its BB or Bb the offspring will show the dominant trait

Explanation:

If its bb then the trait wont be expressed

5 0
2 years ago
The ABO blood group assorts independently of the Rhesus (Rh) blood group and the MN blood group. Three alleles, IA , IB , and i,
Eva8 [605]

Answer:

Part 1:

The mother’s genotype is ii, rr, MN

The father’s genotype is IAIA/IAi, Rr, MM

Part 2:

Approximately 1/32 (3.125%) of children can be expected to have the stated blood types.

Explanation:

Part 1:

The mother has blood types 0, Rh- and MN. Therefore, her genotype has to be ii, rr, MN.

The father has ABO type A. His ABO genotype may therefore be either IAIA or IAi, as both are compatible with type A offspring with a type 0 mother. His Rh genotype must be rr, since his Rh- child necessarily has to have inherited one r allele from each parent. Finally, his MN genotype has to be MM since both alleles are codominant.

Part 2:

Using the given data, we build the following Punnett chart:

                IA R N     IA r N     i R N     i r N    

IA R M

IA R N

IA r M

IA r N

IB R M

IB R N

IB r M                                                    X

IB r N                                                              

Note that, of all 32 possible combinations, only a single one of them (marked with “X” produces a genotype which matches the desired blood type, as follows:

genotype: IBi, rr, MN

blood type: B, Rh-, MN

3 0
3 years ago
What substances are involved in controlling the production of sperm and eggs in humans
sleet_krkn [62]
What substances are involved in controlling the production of sperm and eggs in humans? Hormones.
4 0
3 years ago
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