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DENIUS [597]
3 years ago
13

Do you have a summative in Grade 9 science?​

Biology
2 answers:
sasho [114]3 years ago
7 0

Answer:

yes I have

Explanation:

why did you ask

sukhopar [10]3 years ago
3 0

Answer:

check with your teacher

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Ictoria and the mambers of her immediate family have attached earlobes . what is her geno type?
White raven [17]
Say B is the genotype for example. If her whole family is attached, then she would be Homozygous Dominant. For example, BB.
6 0
3 years ago
If G=yellow seeds and g=green seeds, a) predict the genotypic and phenotypic ratios of a cross between a heterozygote and a homo
Schach [20]

Answer:

a) Genotype ratio= 1/2 Gg: 1/2 gg

Phenotype ratio = 1/2 yellow seeds: 1/2 green seeds

b) Genotype ratio= 1/4 GG : 1/2 Gg: 1/4 gg

Phenotype ratio= 3/4 yellow seeds : 1/4 green seeds

Explanation:

a) Genotype of heterozygote parent plant = Gg

Genotype of homozygous recessive parent plant= gg

A cross between Gg x gg gives progeny in following ratio= 1/2 Gg (yellow seeds) : 1/2 gg (green seeds)

b) Parent plants = GG x gg

F1= Gg

A cross between Gg x Gg would give F2 progeny in following ratio= 1/4 GG (yellow seeds): 1/2 Gg (yellow seeds) : 1/4 (green seeds)

4 0
3 years ago
According to the theory of plate tectonics, which features do plates carry? Check all that apply.
lawyer [7]

according to the theory of plate tectonics, the continents are embedded in lithospheric plates. as these plates move, they carry the continents with them. the ocean basins are part of lithospheric plates as well. identify the weakness in weneger's continental drift hypothesis.

5 0
3 years ago
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I need helpppp ASAPPP
Margaret [11]

I think the answer is "It's tightly packed cells allow for protection against harmful substances."

6 0
4 years ago
How does the formation of oil differ from the formation of coal
Helen [10]
The formation oil, that is, sweet crude, is typically  that accumulate on the seafloor and "kitchen" of the geothermal gradient to be altered in petroleum products.while <span>Most of the </span>coal<span> we use now was </span>formed<span> about 300 million years ago, when much of the </span>earth<span> was covered by steamy swamps.

hope that helped</span>
8 0
4 years ago
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