Answer:
Prokaryotic cells don't have a membrane bound organelle
Explanation:
Prokaryotic cells has no nucleus as well as no membrane bound organelle. To remeber this, Pro rhymes with NO. Meaning NO nucleus NO membrane but it do have ribosomes,cytoplasm, and etc.
This is the answer if thats what you are reffering too.
This is in accordance to behavioral conditioning. Originally, the white uniform of the nurse has no associated stimuli for the patient, that's why the baby will not react in fear upon seeing the white uniform for the first time. But since the nurse introduces a painful stimuli (i.e. injection) to the baby, the baby will then associated the painful stimuli to the harmless stimuli which is the white uniform. The white uniform will now be a conditioned stimulus; wherein all nurses or all persons in white uniform will trigger fear to the patient, even without the original painful stimulus.
Answer:
They allow a reduction in chromosomes while preserving most of the cytoplasm for one egg.
Explanation:
In ovary oogenesis occurs for the formation of ovum or egg.
During oogenesis primary oocyte on meiosis - I forms one secondary oocyte and one polar body.
In the next step secondary oocyte on meiosis-II forms one ovum and one polar body.
Polar bodies are small cells which have less cytoplasm.
Polar bodies are meant for preserving cytoplasm to ovum so that ovum is rich in cytoplasm and it has only half of the chromosomes.
<span>QUESTION 1
The phenotype produced from a pair of alleles Rr is determined by the dominant allele.
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QUESTION 2
<span>
Huntington's disease is a genetic disorder that causes the breakdown of brain tissue starting during middle age. Huntington's is inherited by anyone carrying a dominant allele. Which of the following genotypes is LEAST likely to have Huntington's disease?
Answer: </span>hh<span>
QUESTION 3
The two copies of a gene inherited from each parent in animal cells are called alleles.
QUESTION 4
In pea plants the allele for tall is dominant to the allele for short. What would be the phenotype of the parents of this cross?
Answer: tall
QUESTION 5
The ability to roll the tongue in humans is coded by the dominant allele R. The inability to roll the tongue is coded by the recessive allele r. A man with an RR allele combination for the trait produces a zygote with a woman with an rr allele combination for the trait. Which allele combination could occur in the zygote?
Answer: Rr
QUESTION 6
Tay–Sachs disease is caused by a recessive lethal allele, meaning that individuals that are homozygous recessive (tt) will have the disease and die before they are able to have offspring. Two parents that are heterozygous (Tt) carriers for Tay–Sachs want to have children. What are the chances that their children will get Tay-Sachs disease?
The possible phenotypes for the children are TT, Tt, Tt, and tt. Therefore, there is a 1/4 chance that their children will get the disease.
Answer: 25%
</span>QUESTION 7
Cystic Fibrosis is a genetic disease that affects mucus cells in the lungs. The disease affects only those individuals that have a homozygous recessive genotype (ff). Two individuals that are heterozygous carriers for the disease decide to have children. What are the chances that one of their children will have Cystic Fibrosis?
Answer: 25%
<span>QUESTION 8
Hemophilia is a recessive, X-linked genetic disorder. If a male child is born with hemophilia and neither the mother nor the father has hemophilia, which of the following statements is most likely true?
Females have two X chromosomes while males have one, so it is more likely that the mother carried the recessive gene.
Answer: The mother is the carrier.
QUESTION 9
Hemophilia is an X–linked recessive disorder. If you cross a normal male with a hemophiliac female, what will be the probability of having hemophiliac children?
The parents have phenotypes with hh (mother) and HH (father), and have the potential of having offspring with the following phenotype: Hh. Therefore, the dominant allele in the father will prevent the offspring from having hemophiliac children.
Answer: 0%
QUESTION 10
Can a male be a carrier for a sex-linked disease?
Answer: No, males have only a single copy of sex-linked genes.
</span>Hope this helps!
When you eat a apple your eating the hypanthium tissue it could also be the core but i dont know anyone who enjoys eating the core.