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lifespan ch 2
| Question | Answer |
|---|---|
| Blake just learned that she is 6 weeks pregnant. Her developing baby is in the _____ period of prenatal development. | embryonic |
| Identical twins are also called _____ twins. | monozygotic |
| When the effects of genes add up to make the phenotype, they are called _____ genes. | additive |
| The _____ is a test often administered to newborns that measures responsiveness and records 46 behaviors, including 20 reflexes. | Brazelton Neonatal Behavioral Assessment Scale (NBAS) |
| The age of viability is the time when the preterm newborn _____. | might survive outside the uterus |
| As part of embryonic development, the neural tube will become the _____. | central nervous system, including the brain and spine |
| When Alexia was born, she suffered a lack of oxygen for a small amount of time. Alexia experienced _____. | anoxia |
| A person who supports a mother through the birth process from early labor at home through delivery at home or in a hospital is called a _____. | doula |
| Abed's mom is four months pregnant. Abed is anxious for the new baby and asks, “How many more months until I'm a big brother?” His mother says he has to wait about _____ more months. | 5 |
| Many obstetricians date the onset of pregnancy from the date of _____. | the woman's last menstrual period |
| Blaire rushed into the house after school and announced to her parents, “My personality is _____! So many genes make me who I am!” | polygenic |
| All of the following affect vision EXCEPT | not culture |
| Each molecule of deoxyribonucleic acid (DNA) is stored on a(n) ____ | not gene |
| Adults who were low-birthweight babies have higher rates of _____. | diabetes |
| Genes with various repeats or deletions of base pairs are referred to as | not polymorphic |
| Vinaya learned from her science teacher that her height probably resulted from about 180 genes, each contributing a tiny amount of genetic information. Vinaya learned that her height resulted from _____. | not dominant gene |
| The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent is exactly like the code on the same gene from the other parent, the gene pair is _____. | homozygous |
| In the fourth week after conception, a minuscule blood vessel that will become the _____ begins to pulsate. | heart |
| Low folic acid during pregnancy can result in _____. | neural-tube defects |
| Brown-eyed Alma has a blue-eyed mother and a brown-eyed father. In this case, her brown eyes were determined by a _____ allele. | not dominant-reccesive |
| A fatal central nervous system disorder caused by a copy number variation—more than 35 repetitions of a particular set of three base pairs—is _____. | huntington's disease |
| The average length of active labor in a first birth is _____. | not about 8 hrs |
| Isaac and Xavier are playing basketball. Isaac shoots the ball and Xavier blocks the shot. Isaac says, “Wow, I didn't realize how tall you were until you did that!” Xavier's comment refers to Isaac's _____. | phenotype |
| Research indicates that a doula-assisted birth can benefit _____. | all women |
| ADHD could be the result of prenatal exposure to _____, though he stresses that the link is not straightforward at this time. | cell differentiation |
| During mid-pregnancy, the brain increases about six times in size and develops many new neurons in a process called _____. | neurogenesis |
| The first 22 chromosomes contain hundreds of genes in the same positions and sequence. If the code of the gene from one parent differs from the code on the same gene from the other parent, the gene pair is _____. | not homozygous |
| Couples can select the sex of a child by all of the following methods EXCEPT | selecting only X eggs for fertilization |
| Every person begins life as a single cell, which is called a _____. | zygote |
| A trait that is affected by many factors, both genetic and environmental, that enhance, halt, shape, or alter the expression of genes, resulting in a phenotype that may differ markedly from the genotype, is said to be _____. | multifactorial |
| At the onset of the embryonic period, the _____ appear(s). It will eventually become the neural tube. | primitive streak |
| Cerebral palsy was once thought to be the result of something that happened during the birth procedure, but we now know it can result from? | genetic sensitivity, teratogens, maternal infection |
| The critical factor in attaining the age of viability is _____. | attaining advances in neurological functioning |
| The name of the full set of genes that provides the instructions for making an individual member of a certain species is the _____. | genome |
| Anoxia refers to _____. | a lack of oxygen |
| Cells that are able to produce any other cells are called _____cells. | stem |
| Oliver has inherited genes that put him at risk for developing diabetes, but because of his healthy diet and exercise he is not diabetic. This example demonstrates that human characteristics, including diabetes, are _____. | epigenetic |
Created by:
acacianero