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kherson [118]
2 years ago
12

Some dioecious species have the XY genotype for male and XX for female. After double fertilization, what would be the genotypes

of the embryos and endosperm nuclei?
A. embryo XY/ endosperm XXX or embryo XX/endosperm XXY
B. embryo XX/endosperm XX or embryo XY/endosperm XY
C. embryo XX/endosperm XXX or embryo XY/endosperm XYY
D. embryo XX/endosperm XXX or embryo XY/endosperm XXY
Biology
1 answer:
riadik2000 [5.3K]2 years ago
5 0

The genotypes of the embryos and endosperm nuclei embryo XX/endosperm XXX or embryo XY/endosperm XXY.

The main distinction between the embryo and endosperm is that the endosperm serves as the seed's nutritive tissue, whereas the embryo is the conceptus of fertilization. Furthermore, sperm and a binucleate central cell fuse to form an endosperm, while an egg cell and a sperm combine to form an embryo. Additionally, the endosperm is triploid while the embryo is diploid.

Angiosperm seeds contain two different types of structures: embryos and endosperm. Double fertilization is a process that causes both to happen. The two sperm nuclei in the pollen tube are also responsible for their formation in both cases.

Learn more about endosperm here:-

brainly.com/question/2173340

#SPJ4

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Mendel's law of independent assortment states that which allele is passed down to the next generation at one locus is dependent
dlinn [17]

Answer:

False

Explanation:

Mendel's law of independent assortment is about the random distribution of alleles of one gene during anaphase-I. It states that alleles of two or more genes segregate randomly to the poles of the cell. For example, the segregation of R and r alleles to the two poles of the cell would not affect the segregation of the T and t alleles. This random and independent segregation of alleles of different genes during anaphase-I produces new gene combinations in the progeny.

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3 years ago
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KatRina [158]

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Other features of birds include

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3 years ago
What portion of the central theory of gene expression occurs at the ribosomes
anygoal [31]
The central dogma of biology, or the mechanism of reading and expressing genes in all living things, can be expressed as follows: DNA->RNA-> proteins. True ... ribosome protein translation. In translation, _____ interprets the mRNA codon sequence.
3 0
3 years ago
A nurse is instructing a client on how to assess himself for herpes simplex lesions by their configuration. which configuration
saveliy_v [14]
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SIOM CSserials
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Answer:

mRNA destroyer concentration has a greater influence because it is destroying mRNA before  proteins can even be produced.

Explanation:

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Protein not being synthesized at all means that mRNA destroyer concentration has a greater influence on protein levels than protein degradation. With protein degradation, not all the protein is degraded at once and some quantity of the protein can still be found, but with mRNA destroyer concentration, no protein can be found at all because it was not synthesized in the first place.

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